{"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","url":"https:\/\/davidastro.com\/products\/ioptron-3106-02","provider":"David Astro","version":"1.0","type":"link"}