{"product_id":"kowa-te-21wh-21x-wide-angle-eyepiece-for-high-lander-binocular","title":"Kowa TE-21WH 21x Wide Angle Eyepiece for High Lander Binocular","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e21x Wide Angle Magnification\u003c\/li\u003e\n\u003cli\u003e3.0° Real Field of View\u003c\/li\u003e\n\u003cli\u003e17.0mm Eye Relief\u003c\/li\u003e\n\u003cli\u003e3.9mm Exit Pupil\u003c\/li\u003e\n\u003cli\u003eExclusively for Kowa High Lander Binoculars\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\u003eKowa TE-21WH 21x Wide Angle Eyepiece for High Lander Binocular\u003c\/h2\u003e\n\u003cp\u003eThe Kowa TE-21WH 21x Wide Angle Eyepiece gives the High Lander binocular its widest view, delivering 21x magnification across an expansive 3.0° real field of view. Its bright 3.9mm exit pupil and 15.2 relative brightness give a brighter image in dim light, and it offers 17.0mm of eye relief. This listing is for a single eyepiece; a pair is required to fully equip the Kowa High Lander binocular for stereoscopic viewing.\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\u003eMagnification and Field of View: 21x and 3.0°\u003c\/h3\u003e\n\u003cp\u003eThe TE-21WH is the low-power, wide-field option for the High Lander, with a 3.0° real field of view (63° apparent), the widest of the three Kowa High Lander eyepieces. This translates to a 52 m field of view at 1,000 m (kowaoptics.com lists 170.6 ft at 1,000 yds), a wide view for scanning and finding distant subjects.\u003c\/p\u003e\n\u003cp\u003eThe combination of 21x magnification and the High Lander's 82mm objective lenses produces a 3.9mm exit pupil. This larger exit pupil gives a brighter image in dim light than the High Lander's 32x and 50x eyepieces. Its twilight factor is 41.5 (the 32x and 50x eyepieces, with higher magnification, list 51.2 and 64.0).\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\u003e17.0mm Eye Relief\u003c\/h3\u003e\n\u003cp\u003eThe TE-21WH has 17.0mm of eye relief, the distance behind the eyepiece at which the eye sees the full field. Kowa does not describe the eyecup or make further eyeglass claims for this eyepiece.\u003c\/p\u003e\n\u003cp\u003eFor comparison, the standard 32x eyepiece offers 20.0mm of eye relief and the TE-9WH 50x eyepiece 15.0mm.\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\u003eFitting and Removing the Eyepiece\u003c\/h3\u003e\n\u003cp\u003eThe Kowa TE-21WH is designed exclusively for the Kowa High Lander and High Lander PROMINAR binoculars and is not compatible with other Kowa spotting scopes. It fits into the eyepiece opening of the binocular's focus ring.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e To install the eyepiece, you place it in the opening and push until the eyepiece hits against the top of the focus ring. You should feel the eyepiece lock into place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoval:\u003c\/strong\u003e To remove it for cleaning or to swap in another eyepiece, you pull the eyepiece straight out of the focus ring. The manual describes no twisting or release button.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTE-21WH vs. 32x and 50x Eyepieces: Choosing Your View\u003c\/h3\u003e\n\u003cp\u003eKowa offers three interchangeable eyepiece options for the High Lander, each excelling at a different task. The TE-21WH gives the widest real field of view of the three, which suits scanning and wide views.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTE-21WH (21x):\u003c\/strong\u003e With its 3.0° real field (52 m at 1,000 m), 3.9mm exit pupil and 17.0mm eye relief, this eyepiece delivers the widest view, useful for finding subjects before switching to higher power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard (32x):\u003c\/strong\u003e This included eyepiece offers a 2.2° real field of view (38.4 m at 1,000 m), a 2.6mm exit pupil and 20.0mm eye relief. It gives more magnification than the 21x while still offering a substantial field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTE-9WH (50x):\u003c\/strong\u003e The highest power option, this eyepiece narrows the real field to 1.3° (22.7 m at 1,000 m) with 15.0mm eye relief. It suits fine detail on distant subjects; its small 1.6mm exit pupil gives a dimmer image than the 21x and 32x.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCare, Storage and Warranty\u003c\/h3\u003e\n\u003cp\u003eWhen purchased from an authorized North American retailer, the Kowa TE-21WH eyepiece is protected by Kowa's Limited Lifetime Warranty for the original owner. This warranty covers defects in materials and workmanship under normal use, subject to normal wear and tear. Kowa requests product registration within 30 days of purchase. See the \u003ca href=\"https:\/\/davidastro.com\/pages\/kowa-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eKowa warranty policy\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eAfter use, especially in humid or dusty environments, Kowa recommends removing dust from the lenses with a blower, then using lens cleaner on tissue paper or a soft cloth in a circular motion from the center out. Clean and dry the eyepiece, replace the caps and store it in a dry place, for example in a vinyl bag with desiccant.\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\"\u003eHow many Kowa TE-21WH eyepieces do I need for my High Lander binocular?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need \u003cstrong\u003etwo\u003c\/strong\u003e Kowa TE-21WH eyepieces for the High Lander binocular, one for each optical tube. This product is sold as a single eyepiece, so you must purchase a quantity of two to equip your binocular for stereo viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Kowa TE-21WH eyepiece fit my Kowa spotting scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Kowa TE-21WH is designed exclusively for the \u003cstrong\u003eKowa High Lander and High Lander PROMINAR large-format binoculars\u003c\/strong\u003e. Kowa lists it only for the High Lander binocular, not for its TSN spotting scopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat field of view does the TE-21WH give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe TE-21WH has a \u003cstrong\u003e3.0° real field of view\u003c\/strong\u003e and a 63° apparent field, giving 52 m at 1,000 m (kowaoptics.com: 170.6 ft at 1,000 yds). That is wider than the standard 32x (2.2°) and the TE-9WH 50x (1.3°).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much eye relief does the TE-21WH have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eKowa lists \u003cstrong\u003e17.0mm eye relief\u003c\/strong\u003e for the TE-21WH, against 20.0mm for the standard 32x eyepiece and 15.0mm for the TE-9WH. Kowa makes no further eyeglass claim for this eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the view through the 21x TE-21WH differ from the standard 32x eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 21x TE-21WH shows a wider 3.0° field with a larger 3.9mm exit pupil (relative brightness 15.2), so the view is wider and brighter. The standard 32x eyepiece shows a more magnified 2.2° field with a 2.6mm exit pupil (relative brightness 6.8) and offers 20.0mm eye relief against 17.0mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Kowa TE-21WH eyepiece difficult to install or remove in the dark?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the process is very simple. To install, you push the eyepiece into the opening until it hits against the top of the focus ring and locks into place. To remove, you pull it straight out. The manual describes no release button or twisting, making it easy to swap eyepieces even in low light.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I choose the TE-21WH over the higher-power 50x eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe TE-21WH suits scanning and wide views. Its key advantages over the 50x eyepiece are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWider Field of View:\u003c\/strong\u003e 3.0° on the 21x vs. 1.3° on the 50x.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrighter Image:\u003c\/strong\u003e A larger 3.9mm exit pupil (vs. 1.6mm) gives a brighter image in dim light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasier Object Locating:\u003c\/strong\u003e The wide field makes it easier to find and center your targets before potentially switching to higher power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"Relative Brightness\" figure of 15.2 mean for the TE-21WH?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eRelative brightness is the square of the exit pupil diameter (3.9mm x 3.9mm = 15.2). A higher number indicates a brighter image, especially in low light. The TE-21WH's value of \u003cstrong\u003e15.2\u003c\/strong\u003e is higher than the standard 32x (6.8) and 50x (2.6) eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use filters with the Kowa TE-21WH eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eKowa does not list a filter thread for the eyepiece. kowaoptics.com lists a 95 mm filter thread for the High Lander PROMINAR binocular body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is covered by the Kowa Limited Lifetime Warranty for the TE-21WH?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Kowa Limited Lifetime Warranty covers defects in materials and workmanship for the original owner when purchased from an authorized North American retailer. It does not cover damage from misuse, unauthorized repair, or normal wear and tear; caps are covered for their lifetime but not for accidental loss. Kowa requests product registration within 30 days of purchase.\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\u003eMagnification with High Lander\u003c\/td\u003e\n\u003ctd\u003e21x (wide angle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with\u003c\/td\u003e\n\u003ctd\u003eKowa High Lander binocular\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReal Field of View\u003c\/td\u003e\n\u003ctd\u003e3.0°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField of View at 1,000 m\u003c\/td\u003e\n\u003ctd\u003e52 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExit Pupil\u003c\/td\u003e\n\u003ctd\u003e3.9 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e17.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Brightness\u003c\/td\u003e\n\u003ctd\u003e15.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTwilight Factor\u003c\/td\u003e\n\u003ctd\u003e41.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003eOne eyepiece (two needed for the binocular)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e879110001159\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eKowa Limited Lifetime Warranty to the original owner (authorized North American retailer)\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\"\u003eTE-21WH Eyepiece\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\"\u003eEyepiece Caps\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\"\u003eInstruction Manual\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\/kowa-high-lander-binocular-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\/kowa-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eKowa Limited Lifetime Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kowa","offers":[{"title":"Default Title","offer_id":67954390532381,"sku":"KOW-TE-21WH","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/kowa-te-21wh-21x-wide-angle-eyepiece-for-high-lander-binocular-1_b7e5f3e2-0c98-493a-b87e-31032d2ac37b.jpg?v=1793723916","url":"https:\/\/davidastro.com\/en-int\/products\/kowa-te-21wh-21x-wide-angle-eyepiece-for-high-lander-binocular","provider":"David Astro","version":"1.0","type":"link"}