{"title":"Contrepoids iOptron","description":"\u003cp\u003eLes contrepoids et barres iOptron équilibrent le télescope sur les montures équatoriales iOptron. Les contrepoids vont de 1 kg pour la SmartEQ et 1.35 kg, en passant par des modèles de 2 kg, 2.5 kg et 4.5 kg pour les montures de la CEM26 et GEM28 aux CEM40, GEM45 et CEM70, jusqu'à 10 kg pour la CEM120, avec une version basse latitude.\u003c\/p\u003e\u003cp\u003eDes barres de contrepoids et rallonges conviennent aux HEM27\/HEM44, CEM26 et GEM28, ZEQ25\/CEM25 et SGP\/HAE, avec un ensemble de contrepoids SkyTracker Pro.\u003c\/p\u003e","products":[{"product_id":"ioptron-10kg-counterweight-for-cem120","title":"Contrepoids iOptron 10kg pour CEM120","description":"\u003c!-- more --\u003e\u003cp\u003e \u003cspan\u003eContrepoids supplémentaire de 10 kg pour le support CEM120.\u003c\/span\u003e\u003c\/p\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44967942127901,"sku":"IOP-7326","price":265.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/iOptron-10kg-Counterweight-CEM120__20877.1636834689.1280.1280.jpg?v=1684347164"},{"product_id":"ioptron-9-5kg-counterweight-for-ieq45-cem60-and-cem70","title":"Contrepoids iOptron 9.5kg pour iEQ45, CEM60 et CEM70","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cspan\u003eContrepoids supplémentaire de 10 kg pour le support CEM120. Ce contrepoids s'adaptera aux supports suivants :\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eCEM70\/CEM70G\u003c\/li\u003e\n\n\u003cli\u003eGEM45\/GEM45G\/GEM45EC*\u003c\/li\u003e\n\n\u003cli\u003eiEQ45\/iEQ45 Pro\u003c\/li\u003e\n\n\u003cli\u003eCEM60\/CEM60EC\u003c\/li\u003e\n\n\u003cli\u003eCEM40, CEM40G, CEM40EC*\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e* Veuillez vérifier le diamètre de l'arbre du contrepoids.\u003cbr\u003e\u003cbr\u003e Poids : 9,5 kg (21 lb)\u003cbr\u003e Diamètre extérieur : 5,78\" (147 mm)\u003cbr\u003e Diamètre intérieur : 1,11\" (28,28 mm)\u003cbr\u003e Hauteur : 2,95\" (75 mm)\u003cbr\u003e La couleur noire\u003c\/span\u003e\u003c\/p\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44967942160669,"sku":"IOP-7226","price":223.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/iOptron-9-5kg-Counterweight-iEQ45-CEM60-CEM70__02441.1636834787.1280.1280.jpg?v=1684347166"},{"product_id":"ioptron-4-5kg-counterweight-for-ieq30-zeq25-cem25-and-cem40","title":"Contrepoids iOptron 4.5kg pour iEQ30, ZEQ25, CEM25 et CEM40","description":"\u003c!-- more --\u003e\u003cp\u003e \u003cspan\u003eCe contrepoids de 4,5 kg (~10 lbs) peut être utilisé pour la monture iOptron suivante :\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e \u003cul\u003e\n\n\u003cli\u003eCEM40\/CEM40EC* (première version avec arbre CW de 20 mm)\u003c\/li\u003e\n\n\u003cli\u003eiEQ30\/iEQ30 Pro\u003c\/li\u003e\n\n\u003cli\u003eCEM25\/CEM25P\/CEM25EC\u003c\/li\u003e\n\n\u003cli\u003eZEQ25\u003c\/li\u003e\n\n\u003cli\u003eMonture AZ Pro\u003c\/li\u003e\n\n\u003cli\u003eMinitour Pro\u003c\/li\u003e\n\n\u003cli\u003eMinitour II\u003c\/li\u003e\n\n\u003cli\u003eMinitour\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e* Vérifiez le diamètre de l'arbre CW de votre montage CEM40\/CEM40EC avant de commander.\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e \u003cspan\u003eIl peut être utilisé pour d'autres montages avec un arbre de contrepoids de 20 mm de diamètre.\u003c\/span\u003e\u003c\/p\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44967942193437,"sku":"IOP-3006-10","price":133.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/iOptron-4-5kg-Counterweight-iEQ30-CEM25-CEM40__19175.1636834907.1280.1280.jpg?v=1684347168"},{"product_id":"ioptron-5kg-counterweight-for-ieq45-cem40-gem45-cem60-and-cem70","title":"Contrepoids iOptron 5kg pour iEQ45, CEM40, GEM45, CEM60 et CEM70","description":"\u003c!-- more --\u003e\u003cp\u003e \u003cspan\u003eContrepoids de 5 kg pour monture iOptron.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e \u003cspan\u003eCe CW est conçu pour les montures iOptron suivantes :\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eCEM70\/CEM70EC\/CEM70G\u003c\/li\u003e\n\n\u003cli\u003eCEM60\/CEM60EC\u003c\/li\u003e\n\n\u003cli\u003eGEM45\/GEM45EC\/GEM45G\u003c\/li\u003e\n\n\u003cli\u003eCEM40\/CEM40EC\/CEM40G* (pour la dernière version avec arbre CW de 28 mm)\u003c\/li\u003e\n\n\u003cli\u003eiEQ45Pro \u003c\/li\u003e\n\n\u003cli\u003eiEQ45\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eVérifiez le diamètre de l'arbre CW de votre monture CEM40 avant de commander.\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e \u003cspan\u003eIl peut être utilisé pour d'autres supports avec un arbre de contrepoids de 28 mm de diamètre.\u003c\/span\u003e\u003c\/p\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44967942258973,"sku":"IOP-8027","price":139.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/iOptron-5kg-Counterweight-iEQ45-CEM40-GEM45-CEM60-CEM70__00632.1647980066.1280.1280.jpg?v=1684347170"},{"product_id":"ioptron-1-35kg-counterweight","title":"Contrepoids iOptron 1.35kg","description":"\u003c!-- more --\u003e\u003cp\u003e \u003cspan\u003eCe nouveau contrepoids de 1,35 kg (3 lb) est conçu pour les ensembles de contrepoids SkyTracker Pro et SkyGuider pro (#3324), ainsi que d'autres supports iOptron, qui incluent :\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eSkyGuider Pro\u003c\/li\u003e\n\n\u003cli\u003eSkyGuider\u003c\/li\u003e\n\n\u003cli\u003eCube Pro\u003c\/li\u003e\n\n\u003cli\u003eCube-A (montages doubles AltAz\/EQ)*\u003c\/li\u003e\n\n\u003cli\u003eCube-G*\u003c\/li\u003e\n\n\u003cli\u003eCube-E*\u003c\/li\u003e\n\n\u003cli\u003eCEM25\/ZEQ25\u003c\/li\u003e\n\n\u003cli\u003eiEQ30 Pro\/iEQ30\u003c\/li\u003e\n\n\u003cli\u003eCEM40\/CEM40EC** (première version avec arbre CW de 20 mm de diamètre)\u003c\/li\u003e\n\n\u003cli\u003eMinitour\/II\/Pro\u003c\/li\u003e\n\n\u003cli\u003eMonture AZ Pro\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003cbr\u003e\u003cspan\u003e* Il fonctionne avec l'arbre CW (\u003c\/span\u003e \u003cspan\u003e#8607\u003c\/span\u003e \u003cspan\u003e) pour Cube-A\/G\/E.\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e** Vérifiez le diamètre de l'arbre CW de votre montage CEM40\/CEM40EC avant de commander.\u003c\/span\u003e \u003c\/p\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44967942291741,"sku":"IOP-8605","price":59.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/iOptron-1-35kg-Counterweight__42902.1636835336.1280.1280.jpg?v=1684347174"},{"product_id":"ioptron-2-5kg-counterweight-for-ieq45-cem40-gem45-cem60-and-cem70","title":"Contrepoids iOptron 2,5 kg pour iEQ45, CEM40, GEM45, CEM60 et CEM70","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cspan\u003eCe contrepoids de 2,5 kg (5,5 lb) est conçu pour les montures iOptron suivantes :\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eCEM70\/CEM70EC\/CEM70G\u003c\/li\u003e\n\n\u003cli\u003eCEM60\/CEM60EC\u003c\/li\u003e\n\n\u003cli\u003eGEM45\/GEM45EC\/GEM40G\u003c\/li\u003e\n\n\u003cli\u003eCEM40\/CEM40EC\/CEM40G* (pour la dernière version avec arbre CW de 28 mm)\u003c\/li\u003e\n\n\u003cli\u003eiEQ45Pro\u003c\/li\u003e\n\n\u003cli\u003eiEQ45\u003c\/li\u003e\n\n\n\u003c\/ul\u003e \u003cp\u003e\u003cb\u003e* Vérifiez le diamètre de l'arbre CW de votre monture CEM40 avant de commander.\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e \u003cspan\u003eIl peut être utilisé pour d'autres supports avec un arbre de contrepoids de 28 mm de diamètre.\u003c\/span\u003e\u003c\/p\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44967949599005,"sku":"IOP-8027-05","price":97.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/IOP-8027-05__60485.1639768345.1280.1280.jpg?v=1684347236"},{"product_id":"ioptron-2kg-counterweight-for-cem26-gem28-and-az-mount-pro","title":"Contrepoids iOptron 2kg pour monture CEM26, GEM28 et AZ Pro","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cspan\u003eCe contrepoids de 2 kg (4,5 lb) est conçu pour les montures iOptron suivantes :\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003eCEM26\/CEM26EC\u003c\/li\u003e\n\n\u003cli\u003eGEM28\/GEM28EC\u003c\/li\u003e\n\n\u003cli\u003eMonture AZ Pro\u003c\/li\u003e\n\n\u003cli\u003eiEQ30\/iEQ30 Pro\u003c\/li\u003e\n\n\u003cli\u003eCEM25\/CEM25P\/CEM25EC\u003c\/li\u003e\n\n\u003cli\u003eZEQ25\u003c\/li\u003e\n\n\u003cli\u003eMinitour Pro\u003c\/li\u003e\n\n\u003cli\u003eMinitour II\u003c\/li\u003e\n\n \u003cli\u003eMinitour\u003c\/li\u003e\n\n\u003cli\u003eCEM40\/CEM40EC* (première version avec arbre CW de 20 mm)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e* Vérifiez le diamètre de l'arbre CW de votre montage CEM40\/CEM40EC avant de commander.\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e \u003cspan\u003eIl peut être utilisé pour d'autres montages avec un arbre de contrepoids de 20 mm de diamètre.\u003c\/span\u003e\u003c\/p\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":44968007729437,"sku":"IOP-3006-05","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/iOptron-2kg-Counterweight-3006-05__49891.1654181550.1280.1280.jpg?v=1684347807"},{"product_id":"ioptron-hem27-hem44-counterweight-bar","title":"Barre de contrepoids iOptron HEM27\/HEM44","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cspan itemprop=\"description\"\u003eCette barre de contrepoids s'adapte à un support HEM27\/HEM44. C'est également la barre CW d'origine pour une monture CEM26\/GEM28.\u003cbr\u003e\u003cbr\u003e Dimensions:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e Diamètre: 20mm\u003c\/li\u003e\n\n\u003cli\u003e Longueur : 200 mm\u003c\/li\u003e\n\n\u003cli\u003e Longueur incluant le filetage et la vis de verrouillage de sécurité : 224 mm\u003c\/li\u003e\n\n\u003cli\u003e Taille du filetage : M16-2 mm (les deux extrémités)\u003c\/li\u003e\n\n\u003cli\u003e Vis de verrouillage de sécurité incluse\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003c\/p\u003e\n\n\u003c!----\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":48603563753757,"sku":"IOP-8456SL","price":63.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/IOP-8456SL.jpg?v=1717695215"},{"product_id":"ioptron-stainless-steel-extension-bar-for-cem40-50-60-70-etc","title":"iOptron Stainless Steel Extension Bar for CEM40\/50\/60\/70\/etc.","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eExtends counterweight shaft length\u003c\/li\u003e\n\u003cli\u003eIncreases counterweight leverage\u003c\/li\u003e\n\u003cli\u003eAllows for balancing heavier payloads with fewer weights\u003c\/li\u003e\n\u003cli\u003eStainless steel construction for durability\u003c\/li\u003e\n\u003cli\u003eCompatible with iOptron CEM40, GEM45, CEM60, CEM70 and similar mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eiOptron Stainless Steel Extension Bar for CEM40\/50\/60\/70\/etc.\u003c\/h2\u003e\n      \u003cp\u003eThe iOptron Stainless Steel Extension Bar provides a simple and effective solution for balancing heavy or physically long telescope payloads on compatible iOptron mounts. By increasing the length of the counterweight shaft, this extension bar multiplies the effectiveness of your existing counterweights, allowing you to achieve perfect equilibrium without needing to purchase additional, heavy counterweights. This is a critical accessory for imagers using large refractors, Schmidt-Cassegrains, or heavy camera and guide scope configurations.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eAchieve Critical Balance for Heavy Payloads\u003c\/h3\u003e\n      \u003cp\u003eWhen you mount a large optical tube or a heavy imaging train, achieving proper balance is essential for the tracking accuracy and health of your mount's drive gears. This stainless steel extension bar moves your counterweights further from the mount's axis of rotation, increasing their moment arm. This application of basic physics means a single counterweight can offset a much heavier payload, reducing the total weight your mount has to carry and improving overall stability.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA More Efficient Balancing Solution for iOptron Mounts\u003c\/h3\u003e\n      \u003cp\u003eInstead of stacking multiple counterweights close to the mount, the iOptron Extension Bar creates a more efficient and often lighter setup. This is particularly useful for portable rigs where minimizing total weight is a priority. The bar is machined from stainless steel to match the original counterweight shaft, ensuring a secure, corrosion-resistant connection that threads on seamlessly to mounts like the CEM40, GEM45, CEM60, and CEM70.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eReduced Total Mass:\u003c\/strong\u003e By increasing leverage, you can often remove one or more counterweights, lessening the load on the mount's bearings and motors.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClearance for Long OTAs:\u003c\/strong\u003e For long refractors or Newtonian telescopes, moving the counterweights further down the shaft can prevent them from colliding with the tripod legs when pointed near the zenith.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e The stainless steel build ensures rigidity and longevity, preventing flexure that could compromise tracking.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhen do I need the iOptron Extension Bar for my CEM40 mount?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou need the \u003cstrong\u003eiOptron Extension Bar\u003c\/strong\u003e when your telescope payload is heavy enough that your counterweights are slid all the way to the end of the standard shaft and you still cannot achieve balance. This often happens when using larger refractors or adding a heavy guide scope and camera to your imaging setup.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill adding the iOptron Extension Bar affect my mount's stability?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile the extension bar is made of rigid stainless steel, adding length to any shaft can potentially introduce a small amount of flexure or increase susceptibility to vibrations from wind. However, this effect is generally negligible compared to the significant benefit of achieving proper balance, which is far more critical for your mount's tracking performance and longevity.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this iOptron extension to balance a large SCT on my CEM70?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. A large Schmidt-Cassegrain telescope, especially with a full imaging train attached, is a perfect use case for the \u003cstrong\u003eiOptron Extension Bar\u003c\/strong\u003e on a CEM70. It allows you to balance the payload with fewer counterweights, keeping the total carried weight lower and putting less strain on the mount.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the iOptron Extension Bar help more than just adding another counterweight?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAdding another counterweight increases the total mass the mount must move, which can lead to slower response times and more strain on the motors. The extension bar works smarter, not harder, by using \u003cstrong\u003eleverage\u003c\/strong\u003e. It increases the effectiveness of the weights you already own, allowing you to achieve balance with less overall mass on the mount.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat iOptron mounts is this Stainless Steel Extension Bar compatible with?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis extension bar is designed for iOptron mounts that use the standard counterweight shaft thread. This includes popular models such as the \u003cstrong\u003eCEM40, GEM45, CEM60, and CEM70\u003c\/strong\u003e, among others. It is intended to be a direct fit for these series of mounts.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs installation of the iOptron Extension Bar difficult?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, installation is very simple. You first remove the toe-saver\/end cap from your existing counterweight shaft. Then, you simply thread the extension bar securely onto the end of the shaft. Finally, re-attach the toe-saver to the end of the newly installed extension bar.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eiOptron CEM40, GEM45, CEM60, CEM70, and similar mounts\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eStainless Steel Counterweight Shaft Extension Bar\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":49085581394205,"sku":"IOP-8026","price":109.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/8026-2T.jpg?v=1724769694"},{"product_id":"ioptron-8459","title":"iOptron HAZ46 Counterweight Shaft \u0026 Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables counterweight use on the iOptron HAZ46 mount\u003c\/li\u003e\n\u003cli\u003eImproves balance for heavy or long optical tubes\u003c\/li\u003e\n\u003cli\u003eReduces strain on the strain wave drive system\u003c\/li\u003e\n\u003cli\u003eIncreases tracking stability for astrophotography\u003c\/li\u003e\n\u003cli\u003eOfficial iOptron accessory for guaranteed fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eHAZ46 Counterweight Shaft \u0026amp; Adapter\u003c\/h2\u003e\n\u003cp\u003eUnlock the full potential of your iOptron HAZ46 mount with the HAZ46 Counterweight Shaft \u0026amp; Adapter. This essential accessory allows you to perfectly balance heavier or physically long telescope payloads, reducing strain on the harmonic drive and significantly improving tracking stability for critical imaging applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBalancing Demanding Payloads on the iOptron HAZ46\u003c\/h3\u003e\n\u003cp\u003eWhile the iOptron HAZ46 mount is engineered for counterweight-free operation with many setups, large instruments like long-focal-length refractors or SCTs with heavy camera trains can exceed the mount's inherent balancing capacity. Adding a counterweight provides the necessary counterbalance to prevent undue stress on the drive gears, ensuring smoother, more precise tracking across the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFactory-Spec Design for Secure Integration\u003c\/h3\u003e\n\u003cp\u003eAs a genuine iOptron accessory, the HAZ46 Counterweight Shaft \u0026amp; Adapter is designed to integrate seamlessly with your mount. The components provide a rigid, secure connection, eliminating any flexure or wobble that could compromise your imaging data. This ensures your entire setup remains stable and performs as a single, cohesive unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I need a counterweight for the HAZ46 mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eStrain wave gear mounts like the \u003cstrong\u003eiOptron HAZ46\u003c\/strong\u003e operate without counterweights for many payloads. However, for optical tubes that are particularly heavy or have a long moment arm (like a large refractor), adding a counterweight improves stability, reduces load on the drive motors, and can lead to more accurate tracking for long-exposure astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the HAZ46 Counterweight Shaft necessary for imaging with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt depends on your imaging train. An 8\" SCT by itself may not require it, but if you add a heavy cooled camera, filter wheel, and off-axis guider, the total weight and its distribution can create an imbalance. The \u003cstrong\u003eHAZ46 Counterweight Shaft\u003c\/strong\u003e allows you to perfectly balance this heavier configuration for optimal tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill adding the HAZ46 Counterweight Shaft make my setup less portable?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, adding the shaft and one or more counterweights will increase the total weight of your setup. This is a direct trade-off for achieving better balance and stability with larger telescopes. The shaft itself is lightweight and can be easily removed for transport, but the counterweights themselves add significant mass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat counterweights fit the HAZ46 Counterweight Shaft?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis shaft is designed to be compatible with standard iOptron counterweights. Please refer to your mount's documentation to ensure you select a counterweight with the correct bore diameter for the shaft.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging with a 120mm f\/7 refractor on my HAZ46. Would this help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. A 120mm refractor, especially with a dew shield and a full imaging rig, creates a long moment arm. The \u003cstrong\u003eHAZ46 Counterweight Shaft \u0026amp; Adapter\u003c\/strong\u003e is highly recommended in this scenario to provide a stable, balanced platform, which is critical for achieving sharp, round stars during long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the HAZ46 Counterweight Shaft \u0026amp; Adapter include the actual counterweights?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This product includes only the counterweight shaft and the adapter needed to attach it to the HAZ46 mount. Counterweights must be purchased separately based on the needs of your specific telescope payload.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eiOptron HAZ46 Strain Wave Gear Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCounterweight Shaft\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMount Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917273723165,"sku":"IOP-8459","price":203.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-HAZ46-Counterweight-Shaft-Adapter-1_fe986cef-b3de-4932-848d-9b9ab352710d.jpg?v=1789141676"},{"product_id":"ioptron-7326ll","title":"iOptron 10kg Counterweight for CEM120 (Low Latitude)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e10kg Counterweight\u003c\/li\u003e\n\u003cli\u003eDesigned for iOptron CEM120 Mounts\u003c\/li\u003e\n\u003cli\u003eOptimized for use at latitudes below 10°\u003c\/li\u003e\n\u003cli\u003ePrevents collision with tripod or pier legs\u003c\/li\u003e\n\u003cli\u003eOEM iOptron Accessory (7326LL)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eiOptron 10kg Counterweight for CEM120 (Low Latitude)\u003c\/h2\u003e\n\u003cp\u003eThis iOptron 10kg counterweight (7326LL) is the specific solution required for balancing heavy payloads on iOptron CEM120 mounts operating at latitudes below 10°. Its specialized, compact design provides essential clearance between the counterweight and the tripod or pier, a critical factor when the counterweight shaft is nearly horizontal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolving the 10° Latitude Clearance Problem for the CEM120\u003c\/h3\u003e\n\u003cp\u003eOn a German Equatorial Mount, as your observing latitude approaches the equator, the polar axis becomes more horizontal. This causes the counterweight shaft to swing lower, increasing the risk of a standard-diameter counterweight colliding with the tripod legs. This 10kg low-latitude counterweight is engineered with a smaller physical diameter to provide the necessary clearance, ensuring safe, full-range motion for your CEM120 mount in equatorial locations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e10kg of Stable Mass for Heavy Imaging Payloads\u003c\/h3\u003e\n\u003cp\u003eAchieving perfect balance is fundamental to the sub-arcsecond tracking of the CEM120. This 10kg weight allows you to precisely balance heavy optical tubes and imaging trains, minimizing stress on the drive motors and enabling the mount to deliver its peak tracking accuracy. As an official iOptron accessory (7326LL), it is manufactured to match the fit and finish of your mount, featuring a secure locking knob that ensures it remains firmly in place throughout an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a special low-latitude counterweight for my iOptron CEM120?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen using a CEM120 mount near the equator (at latitudes below 10°), the counterweight shaft hangs at a very low, almost horizontal angle. A standard counterweight's diameter is often too large, causing it to collide with the tripod or pier legs during slewing. This specialized \u003cstrong\u003eiOptron 10kg low-latitude counterweight\u003c\/strong\u003e has a more compact physical profile specifically to prevent this collision and allow for unrestricted movement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the iOptron 7326LL counterweight at higher latitudes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. While it is designed to solve a problem unique to low latitudes, the counterweight functions perfectly well at any latitude. If you travel with your CEM120 or simply prefer its form factor, it will provide 10kg of counterbalance regardless of your location.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAt what latitude does the standard iOptron CEM120 counterweight become a problem?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis counterweight is specifically recommended for observers operating their CEM120 mount at latitudes of \u003cstrong\u003eless than 10 degrees\u003c\/strong\u003e. Above this threshold, a standard counterweight typically has sufficient clearance from the tripod or pier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this 10kg iOptron counterweight compatible with other mounts like the CEM70?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this counterweight is designed specifically for the counterweight shaft diameter of the \u003cstrong\u003eiOptron CEM120 series\u003c\/strong\u003e mounts. It will not fit smaller mounts like the CEM70, GEM45, or CEM40, which use a different shaft diameter. Always use counterweights designed for your specific mount model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow many 10kg low-latitude counterweights do I need for my CEM120?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe number of counterweights depends entirely on your payload weight. A common rule of thumb is to match the weight of your optical tube, camera, and all accessories. For a 20kg telescope setup, you would typically require two of these 10kg counterweights for proper balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 7326LL counterweight attach to the CEM120 shaft?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iOptron 10kg Low Latitude counterweight slides onto the CEM120's counterweight shaft and is secured in place by a large, tool-free locking knob. This allows for quick, secure adjustments along the shaft to achieve perfect balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Code\u003c\/td\u003e\n\u003ctd\u003e7326LL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e10kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Mount\u003c\/td\u003e\n\u003ctd\u003eiOptron CEM120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended Use\u003c\/td\u003e\n\u003ctd\u003eObserving at latitudes below 10°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eiOptron 10kg Counterweight for CEM120 (Low Latitude)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron_CEM120_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917274247453,"sku":"IOP-7326LL","price":319.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-CW-10kg-for-CEM120-Low-Latitude-1_fee49b84-a488-4df6-a7a5-b39d89565a1f.jpg?v=1789141693"},{"product_id":"ioptron-8457","title":"iOptron Counterweight Shaft Extension Bar for CEM26 \u0026 GEM28","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eExtends Counterweight Shaft Length\u003c\/li\u003e\n\u003cli\u003eDesigned for iOptron CEM26 and GEM28 Mounts\u003c\/li\u003e\n\u003cli\u003eEnables Balancing of Heavier or Longer Telescopes\u003c\/li\u003e\n\u003cli\u003eReduces the Need for Additional Heavy Counterweights\u003c\/li\u003e\n\u003cli\u003eLowers Total System Weight for Increased Portability\u003c\/li\u003e\n\u003cli\u003eOfficial iOptron Accessory for Guaranteed Fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eiOptron Counterweight Shaft Extension Bar for CEM26 \u0026amp; GEM28\u003c\/h2\u003e\n\u003cp\u003eThe iOptron Counterweight Shaft Extension Bar is the official accessory for achieving optimal balance on your CEM26 or GEM28 mount when using larger or heavier optical tubes. By increasing the lever arm for your counterweights, this extension allows you to balance demanding payloads with fewer, lighter weights, preserving the portability of your CEM26 or GEM28 setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIncrease Balancing Efficiency for iOptron CEM26 \u0026amp; GEM28 Mounts\u003c\/h3\u003e\n\u003cp\u003eThis counterweight shaft extension addresses a common challenge in astrophotography: balancing a heavy imaging rig on a portable mount. Instead of adding more counterweights—and thus more total mass for the mount to carry—this bar uses the principle of leverage to make your existing weights more effective.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalance Heavier Telescopes:\u003c\/strong\u003e Securely balance longer refractors or Schmidt-Cassegrains equipped with heavy cameras and guide scopes, which would otherwise be impossible to balance on the standard shaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduce Total System Weight:\u003c\/strong\u003e By moving your counterweights further from the mount's axis, you can achieve equilibrium with less mass. This keeps your field setup lighter and easier to transport and assemble.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOfficial iOptron Design:\u003c\/strong\u003e As a genuine iOptron part, this extension bar guarantees perfect threading, a secure fit, and seamless integration with your CEM26 or GEM28 mount's counterweight shaft and safety stop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen do I need the iOptron Counterweight Shaft Extension for my CEM26 or GEM28 mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need the extension bar when your telescope is too heavy to balance with your existing counterweights positioned at the very end of the standard shaft. This is a common issue when using physically long refractors or heavier telescopes like SCTs, especially with a full imaging train attached.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the CEM26\/GEM28 Extension Bar let me use fewer counterweights?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, in many cases. By increasing the distance of the counterweight from the mount's axis of rotation, it multiplies the balancing force (torque). This allows you to balance the same telescope with less counterweight mass, reducing the overall weight your mount has to carry and slew.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm trying to balance an 8\" SCT on my GEM28 mount for imaging. Is this extension bar the right solution?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a perfect use case for the extension bar. An 8\" SCT with a camera, guide scope, and other accessories often requires more balancing torque than standard counterweights can provide on the default shaft. The CEM26\/GEM28 extension bar provides the extra leverage needed for a precise and secure balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the CEM26\/GEM28 Extension Bar to balance a long 102mm refractor on my CEM26?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Long refractors create a significant moment arm that can be difficult to counteract. The extension bar is designed specifically for this situation, allowing you to properly balance the telescope's length and weight without having to purchase and transport extra-heavy counterweights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this an official iOptron accessory for the CEM26 and GEM28?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the official iOptron counterweight shaft extension manufactured specifically for the CEM26 and GEM28 series mounts. This ensures a perfect fit, correct threading, and safe, reliable operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of using the CEM26\/GEM28 Extension Bar versus just buying a heavier counterweight?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is reducing the total weight you need to transport and load onto your mount. While a heavier weight also achieves balance, the extension bar lets you do so with lighter weights you may already own. This makes your entire setup more portable and puts less total stress on the mount's motors and bearings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917276410141,"sku":"IOP-8457","price":45.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-CEM26-GEM28-Ext-Bar-1_ef310102-8e39-46d0-8a00-b3f6fff71d96.jpg?v=1789141753"},{"product_id":"ioptron-3324","title":"iOptron SkyTracker Pro Counterweight Package (3324)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables balancing of heavier camera and lens combinations\u003c\/li\u003e\n\u003cli\u003eImproves tracking accuracy by reducing motor strain\u003c\/li\u003e\n\u003cli\u003eAttaches directly to the iOptron SkyTracker Pro mount\u003c\/li\u003e\n\u003cli\u003eEssential for telephoto astrophotography\u003c\/li\u003e\n\u003cli\u003eIncreases overall stability of your imaging setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSkyTracker Pro Counterweight Package (3324)\u003c\/h2\u003e\n\u003cp\u003eThe iOptron SkyTracker Pro Counterweight Package (3324) is the definitive solution for photographers using heavier camera and telephoto lens systems on their star tracker. By perfectly balancing the payload on the Right Ascension axis, this kit mitigates stress on the drive motor. This directly translates to improved tracking accuracy, reduced periodic error, and ultimately, sharper, rounder stars in your long-exposure images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMaximize Stability for the SkyTracker Pro with Heavier Lenses\u003c\/h3\u003e\n\u003cp\u003eWhen you use a large telephoto lens or a heavier full-frame DSLR, the center of gravity shifts, placing significant torque on the SkyTracker Pro's motor. An imbalanced load forces the motor to work harder, which can introduce tracking errors that blur your images. This counterweight package solves that problem by providing an opposing mass, creating a finely balanced system that rotates smoothly and effortlessly.\u003c\/p\u003e\n\u003cp\u003eA properly balanced setup not only yields better tracking but also enhances the overall stability of your rig, making it less susceptible to vibrations from wind or shutter movement. It is the single most effective upgrade for pushing the imaging capabilities of your SkyTracker Pro beyond lightweight, wide-angle lenses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the SkyTracker Pro Counterweight Package?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis package is designed to balance the weight of your camera and lens on the iOptron SkyTracker Pro. By adding a counterweight opposite your equipment, you reduce the strain on the mount's motor, which leads to more accurate tracking and sharper astrophotos, especially with heavy telephoto lenses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen should I use this counterweight package with my SkyTracker Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou should consider this package when your imaging setup approaches the upper end of the SkyTracker Pro's payload capacity. It is highly recommended if you are using:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong telephoto lenses\u003c\/strong\u003e (e.g., 200mm, 300mm, or 400mm)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeavier full-frame DSLR or mirrorless cameras\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAny combination where the camera feels \"top-heavy\" or difficult to secure on the ball head.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does balancing my SkyTracker Pro improve my astrophotos of objects like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eImaging a large target like the Andromeda Galaxy (M31) with a telephoto lens requires precise, smooth tracking over long exposures. An imbalanced SkyTracker Pro will exhibit small tracking errors that cause stars to appear elongated or trailed. By balancing the load with this counterweight package, you ensure the motor operates with minimal effort, resulting in rounder stars and sharper details in the galaxy's dust lanes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use a small telescope on the SkyTracker Pro with this counterweight package?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile this package significantly improves stability, the SkyTracker Pro is primarily designed for camera and lens combinations. Mounting a telescope, even a small one, introduces issues with leverage and balancing that may exceed the mount's capabilities. This kit is optimized for DSLR\/mirrorless cameras, not optical tube assemblies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this counterweight package compatible with other iOptron mounts?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the iOptron SkyTracker Pro Counterweight Package (3324) is specifically engineered for the SkyTracker Pro model. It is not designed to be compatible with other iOptron trackers like the SkyGuider Pro or larger German Equatorial Mounts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this package include the counterweight and the shaft?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, a counterweight package typically includes the counterweight itself, the shaft it slides onto, and any necessary hardware to attach it to the mount. It provides a complete solution for balancing your setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePricing\u003c\/td\u003e\n\u003ctd\u003eRegular price: $ 85.00; Sale price: $ 85.00 Sale; Unit price: \/per\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917284045085,"sku":"IOP-3324","price":139.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-SkyTracker-Pro-Counterweight-Package-3324-1_fa86e000-49a9-46fb-b192-b5e65e4199ce.jpg?v=1789141874"},{"product_id":"ioptron-p-sgp-cws","title":"iOptron Counterweight Shaft for iOptron SGP and HAE Mounts","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e200mm (7.875 in.) extended length\u003c\/li\u003e\n\u003cli\u003eStandard 20mm (0.79 in.) diameter\u003c\/li\u003e\n\u003cli\u003eFits iOptron SkyGuider Pro and HAE mounts\u003c\/li\u003e\n\u003cli\u003eDual 3\/8\"-16 threads for extension\u003c\/li\u003e\n\u003cli\u003eIncludes essential safety screw\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eCounterweight Shaft for iOptron SGP and HAE Mounts\u003c\/h2\u003e\n      \u003cp\u003eThe iOptron Counterweight Shaft for SGP and HAE extends your mount's balancing capability with a total length of 200mm and a standard 20mm diameter compatible with iOptron counterweights. Weighing 1 lb, this steel shaft features a 3\/8\"-16 thread on both ends for potential extension and includes a critical safety screw to prevent counterweight slippage.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eExtended 200mm Length for Heavier Payloads\u003c\/h3\u003e\n      \u003cp\u003eWhen you upgrade your portable setup with a heavier telephoto lens or add a guidescope, achieving perfect balance is critical for sharp, un-trailed images. This 200mm shaft provides the extra length needed to increase leverage, allowing you to balance heavier camera rigs on your SkyGuider Pro or HAE mount effectively. This means you can use your existing counterweights or fewer weights overall to achieve stable tracking.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eSecure Fit: 20mm Diameter with Included Safety Screw\u003c\/h3\u003e\n      \u003cp\u003eEngineered to match iOptron's standard, the shaft's 20mm diameter ensures a perfect fit for all SkyGuider Pro and HAE-compatible counterweights. A key feature is the included safety screw at the end of the shaft, which acts as a stop to prevent a counterweight from accidentally sliding off during setup or adjustment. For maximum flexibility, the shaft is threaded with a 3\/8\"-16 thread on both ends, allowing you to connect two shafts for extreme payloads.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat mounts is the iOptron 200mm counterweight shaft compatible with?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis counterweight shaft is designed specifically for iOptron's \u003cstrong\u003eSkyGuider Pro (SGP)\u003c\/strong\u003e and \u003cstrong\u003eHAE series\u003c\/strong\u003e equatorial mounts, featuring a standard 20mm diameter.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I need this 200mm shaft for my SkyGuider Pro?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou need the extended 200mm shaft when your imaging payload becomes too heavy or long to balance with the stock shaft. This typically occurs when using larger telephoto lenses or adding a secondary guidescope and camera, where the extra leverage from the longer shaft is required for proper balance and tracking accuracy.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this iOptron shaft with non-iOptron counterweights?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, you can use any counterweight with this shaft, provided the counterweight has a central bore hole with a \u003cstrong\u003ediameter of 20mm\u003c\/strong\u003e to match the shaft.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the thread size on the iOptron SGP\/HAE shaft?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe shaft features a standard \u003cstrong\u003e3\/8\"-16 thread\u003c\/strong\u003e on both ends. This allows the included safety screw to be attached and also enables the possibility of screwing two shafts together for even greater length.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using a small refractor on my SkyGuider Pro. Is this 200mm shaft necessary?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor a small, heavy refractor like a William Optics RedCat 51, especially with a guide scope attached, the standard counterweight shaft may not provide enough leverage. The 200mm shaft allows you to position the counterweight further out, achieving a perfect balance which is critical for the long-exposure astrophotography these setups are used for.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I connect two of these iOptron 200mm shafts together for a heavy setup on my HAE mount?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. Because the shaft has a 3\/8\"-16 thread on both ends, you can directly connect a second shaft to the first for a combined 400mm of length. This provides extreme leverage for balancing heavy or physically long optical tubes, but you must always ensure your total payload remains under the specified weight capacity of your HAE mount.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eiOptron SkyGuider Pro, HAE Mounts\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e20 mm (0.79 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e200 mm (7.875 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003e3\/8\"-16 (both ends)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSafety Feature\u003c\/td\u003e\n\u003ctd\u003eIncluded Safety Screw\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917284536605,"sku":"IOP-P-SGP-CWS","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-Counterweight-shaft-for-SGP-and-HAE-1_667968cd-f42c-40f2-b062-ed7356720bbe.jpg?v=1789141888"},{"product_id":"ioptron-3106-02","title":"iOptron 1kg Counterweight for SmartEQ","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eWeight: ~1 kg (2 lbs)\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 16.1 mm for SmartEQ shafts\u003c\/li\u003e\n\u003cli\u003eOuter Diameter: 78.6 mm\u003c\/li\u003e\n\u003cli\u003eCompatibility: iOptron SmartEQ \u0026amp; SmartEQ-Pro Mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003e1kg Counterweight for SmartEQ\u003c\/h2\u003e\n\u003cp\u003eThe iOptron 1kg Counterweight for SmartEQ mounts is the specific tool for balancing light astronomical payloads. Weighing approximately 1 kg (2 lbs), this counterweight has an outer diameter of 78.6 mm and a height of 25.8 mm. Its 16.1 mm inner diameter is machined to fit the counterweight shaft of the iOptron SmartEQ and SmartEQ-Pro mounts, ensuring smooth, accurate tracking with small telescopes or camera lenses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBalancing Lightweight Payloads at ~1 kg\u003c\/h3\u003e\n\u003cp\u003eStandard counterweights are often too heavy for ultra-portable setups like small wide-field refractors or a DSLR with a telephoto lens. A heavier weight forces you to slide it all the way up the shaft, often failing to achieve proper equilibrium and stressing the mount's motors. This 1 kg (~2 lbs) counterweight supplies the correct mass to precisely balance these lighter payloads, ensuring your mount tracks accurately without strain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 16.1 mm Bore for iOptron SmartEQ Mounts\u003c\/h3\u003e\n\u003cp\u003eA counterweight's compatibility is dictated by its inner diameter. This weight is built with a precisely machined 16.1 mm (0.63 in.) bore, ensuring a secure fit on the counterweight shaft of iOptron's SmartEQ and SmartEQ-Pro mounts. With an outer diameter of 78.6 mm and a height of 25.8 mm, it is a compact and effective balancing solution for your grab-and-go rig.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need the 1kg counterweight for my William Optics RedCat 51 on a SmartEQ-Pro mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal use case. A lightweight, wide-field telescope like the RedCat 51 is often too light to balance properly with standard, heavier counterweights. This \u003cstrong\u003e1 kg weight\u003c\/strong\u003e allows you to achieve perfect balance without having the weight pushed all the way to the top of the counterweight shaft.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using a DSLR with a 200mm lens on my SmartEQ. Is this 1kg weight the right choice?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. A DSLR and lens combination typically weighs only a few pounds, making the standard counterweight too heavy. The \u003cstrong\u003e1 kg (~2 lbs) counterweight\u003c\/strong\u003e is designed specifically for these types of lightweight imaging rigs, preventing motor strain and improving tracking accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 1kg counterweight fit other iOptron mounts like the SkyGuider Pro or GEM28?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This counterweight is specifically designed for the \u003cstrong\u003eiOptron SmartEQ and SmartEQ-Pro\u003c\/strong\u003e mounts. Its \u003cstrong\u003e16.1 mm inner diameter\u003c\/strong\u003e matches the counterweight shaft on those models. Other mounts, like the SkyGuider Pro or GEM28, use different shaft diameters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the inner diameter of the SmartEQ 1kg counterweight?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe inner diameter (bore) is \u003cstrong\u003e16.1 mm (0.63 inches)\u003c\/strong\u003e. This is the critical dimension that ensures it fits securely on the counterweight shaft of your SmartEQ or SmartEQ-Pro mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy not just use a heavier weight slid further up the counterweight shaft for my SmartEQ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile possible in some cases, it provides poor balance. A heavier weight positioned very close to the mount's axis has less rotational inertia and provides less effective, coarser balancing adjustments. A lighter weight placed further down the shaft offers finer control and a more stable equilibrium, which is critical for accurate GOTO slews and tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this an official iOptron counterweight for the SmartEQ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the official 1 kg counterweight manufactured by iOptron for its SmartEQ and SmartEQ-Pro series mounts, ensuring a perfect fit and finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~1 kg (2 lbs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e16.1 mm (0.63 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e78.6 mm (3 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e25.8 mm (1 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e2.5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e6.25 x 3.75 x 1.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1kg Counterweight for SmartEQ\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917301575965,"sku":"IOP-3106-02","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-1kg-Counterweight-for-SmartEQ-1_b544ad5d-0e97-463a-88b7-dd15982dfb12.jpg?v=1789142353"},{"product_id":"ioptron-7126","title":"iOptron ZEQ25\/CEM25 Counterweight Shaft Extension Bar","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eExtends Counterweight Shaft Length\u003c\/li\u003e\n\u003cli\u003eIncreases Balancing Leverage\u003c\/li\u003e\n\u003cli\u003eAllows for Heavier Telescope Payloads\u003c\/li\u003e\n\u003cli\u003eCompatible with iOptron ZEQ25 Mounts\u003c\/li\u003e\n\u003cli\u003eCompatible with iOptron CEM25 Mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eiOptron ZEQ25\/CEM25 Counterweight Shaft Extension Bar\u003c\/h2\u003e\n\u003cp\u003eIncrease the payload capability of your iOptron ZEQ25 or CEM25 mount with the official Counterweight Shaft Extension Bar. This simple accessory provides greater leverage, allowing you to balance heavier or longer optical tubes on your ZEQ25 or CEM25 mount, often without needing to purchase additional, heavy counterweights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIncrease Balancing Capacity for ZEQ25\/CEM25 Mounts\u003c\/h3\u003e\n\u003cp\u003eBy extending the length of the counterweight shaft on your ZEQ25 or CEM25, this bar increases the moment arm for your counterweights. This gives each weight more leverage, enabling you to achieve perfect balance with heavier telescope payloads that might otherwise be a challenge for the mount. It can also allow you to balance your existing setup with less counterweight, reducing the total weight you carry to your observing site.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary purpose of the ZEQ25\/CEM25 Counterweight Shaft Extension Bar?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary purpose of the ZEQ25\/CEM25 Ext Bar is to increase the leverage of your existing counterweights. By moving the weights further from the mount's axis of rotation, you can balance a heavier telescope or use fewer counterweights for your current setup, making your rig more efficient and often lighter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this extension bar compatible with mounts other than the iOptron ZEQ25 and CEM25?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this counterweight shaft extension is specifically designed and threaded for the iOptron ZEQ25 and CEM25 series of equatorial mounts. It is not compatible with other iOptron models or mounts from other brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy ZEQ25 mount can't quite balance my new 80mm refractor. Will this Ext Bar help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the ideal scenario for the extension bar. If your telescope is only slightly too heavy for your counterweight, adding the ZEQ25\/CEM25 Ext Bar will likely provide the extra leverage needed to achieve perfect balance without the expense and weight of an additional counterweight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the ZEQ25\/CEM25 Ext Bar help reduce the total weight of my setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. If you are currently using two counterweights to balance your telescope, the added leverage from the extension bar may allow you to achieve the same balance with just one of those counterweights, thereby reducing the overall weight of your mount setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy CEM25 mount struggles to balance my 6-inch Newtonian for astrophotography. Is this extension bar a good solution?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ZEQ25\/CEM25 Ext Bar is a critical first step. Proper balance is essential for accurate tracking in astrophotography. A 6-inch Newtonian is often at the upper end of the mount's capacity, and this extension provides the necessary mechanical advantage to properly balance longer or heavier optical tubes for better imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the iOptron ZEQ25\/CEM25 Ext Bar?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. You simply unthread the toe-saver stop from the end of your mount's existing counterweight shaft, thread the extension bar on securely, and then re-attach the toe-saver to the end of the new extension bar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Compatibility\u003c\/td\u003e\n\u003ctd\u003eiOptron ZEQ25, iOptron CEM25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eZEQ25\/CEM25 Counterweight Shaft Extension Bar\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917302395165,"sku":"IOP-7126","price":42.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-ZEQ25-CEM25-Ext-Bar-1_7db8f21f-1bc6-4d9b-b8a1-ebe2e6f672f3.jpg?v=1789142374"},{"product_id":"ioptron-8607","title":"iOptron Cube Counterweight shaft","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e150mm (5.9 in.) Length\u003c\/li\u003e\n\u003cli\u003e19mm (0.74 in.) Diameter\u003c\/li\u003e\n\u003cli\u003eM14 Female Thread\u003c\/li\u003e\n\u003cli\u003eWeight: 11 oz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCube Counterweight shaft\u003c\/h2\u003e\n\u003cp\u003eThis 150 mm (5.9 in.) long counterweight shaft is the essential accessory for properly balancing telescope setups on Cube-style alt-azimuth mounts. With a standard 19 mm (0.74 in.) diameter, it accepts common small counterweights and attaches securely to the mount head via its M14 female thread. The shaft itself weighs only 11 oz, adding minimal dead weight to your system before you add the counterweights needed for smooth, precise tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBalance Your Cube Mount: The 150mm Counterweight Shaft\u003c\/h3\u003e\n\u003cp\u003eWhen you add a camera, a heavy eyepiece, or a larger-than-stock telescope to a Cube mount, the system's balance point shifts. This shaft provides the necessary extension to attach counterweights, offsetting the primary payload. The 150 mm length creates sufficient leverage to balance typical instruments used on these mounts, preventing motor strain and improving GoTo accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCompatibility Check: 19mm Diameter and M14 Thread\u003c\/h3\u003e\n\u003cp\u003eThis shaft is engineered to specific mechanical standards for a secure fit. The M14 female thread is designed to screw directly onto the corresponding male thread on compatible Cube mount heads. Its 19 mm diameter is a common standard for smaller counterweights, ensuring you can easily find weights to fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Cube Counterweight shaft?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Cube Counterweight shaft allows you to add counterweights to a Cube-style mount. This is critical for balancing the telescope, especially after adding heavier accessories like a DSLR camera or a large 2\" eyepiece. Proper balance reduces strain on the mount's motors and gears, resulting in smoother tracking and more accurate GoTo slewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if this counterweight shaft will fit my mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe most important specification to check is the thread. This shaft uses an \u003cstrong\u003eM14 female thread\u003c\/strong\u003e. Your mount must have a corresponding M14 male threaded post for this shaft to attach correctly. Please verify your mount's specifications before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat size counterweights fit on this 19mm shaft?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis shaft has a \u003cstrong\u003ediameter of 19 mm (0.74 in.)\u003c\/strong\u003e. It is compatible with any counterweight that has a center bore slightly larger than 19 mm. These are common sizes for smaller mounts and star trackers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 90mm Maksutov-Cassegrain on my Cube mount. Do I need this counterweight shaft?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt depends on how you are using it. For visual use with standard 1.25\" eyepieces, a 90mm Maksutov is usually light enough not to require counterweights. However, if you add a heavy 2\" diagonal, a large eyepiece, or a camera to the back, the scope will become back-heavy. In that scenario, this 150 mm shaft and a small counterweight would be necessary to restore balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Cube Counterweight shaft to balance a short-tube 80mm refractor with a camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal use case. An 80mm refractor, especially with a field flattener and DSLR or dedicated astronomy camera attached, creates a significant load that must be balanced. The 150 mm length of this shaft provides the leverage needed to offset that kind of imaging payload, ensuring your mount can track smoothly for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much total weight can the Cube Counterweight shaft hold?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe shaft itself is made of solid metal and is very strong. However, the total counterweight capacity is determined by your mount's payload rating, not the shaft itself. Always refer to your mount's manual for its maximum payload capacity and ensure your combined telescope and counterweight load does not exceed it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e19 mm (0.74 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e150 mm (5.9 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003eM14 (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCube Counterweight Shaft\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917303083293,"sku":"IOP-8607","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-Cube-Counterweight-shaft-1_7fa79336-dab8-4c5f-af6f-53f6de728e47.jpg?v=1789142382"}],"url":"https:\/\/davidastro.com\/fr-us\/collections\/ioptron-counterweights.oembed","provider":"David Astro","version":"1.0","type":"link"}