{"product_id":"kowa-te-20h-long-eye-relief-eyepiece","title":"Kowa TE-20H Long Eye Relief Eyepiece","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFixed Magnification Long Eye Relief Eyepiece\u003c\/li\u003e\n\u003cli\u003e32mm of Eye Relief\u003c\/li\u003e\n\u003cli\u003e30x Magnification on TSN-99 Series Scopes\u003c\/li\u003e\n\u003cli\u003e25x Magnification on TSN-88, TSN-77, and TSN-66 Series Scopes\u003c\/li\u003e\n\u003cli\u003eXD Lenses for Crisp Images and True Color\u003c\/li\u003e\n\u003cli\u003eFor Kowa TSN-99\/88\/77\/66 Spotting Scopes\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\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-20H Long Eye Relief Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Kowa TE-20H Long Eye Relief Eyepiece has 32mm of eye relief. It gives a fixed 30x magnification on Kowa's 99mm TSN-99 scopes and 25x on the TSN-88, TSN-77 and TSN-66 series. It uses Kowa XD lenses, which Kowa says deliver crisp images and true color.\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\u003eDesigned for Kowa's TSN-99, 88, 77 and 66 Scopes\u003c\/h3\u003e\n\u003cp\u003eKowa lists the TE-20H for the TSN-99, TSN-88, TSN-77 and TSN-66 spotting scopes. Kowa does not list it for the TSN-82SV, TSN-660M or TSN-600, for which it lists the TE-9Z, TE-14WD and TE-17HD.\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\u003eFixed 25x\/30x Magnification with 32mm of Eye Relief\u003c\/h3\u003e\n\u003cp\u003eThe Kowa TE-20H is a fixed-power eyepiece that delivers a different magnification depending on the focal length of the scope body it's attached to. On the TSN-99 series it gives 30x. On the TSN-88, TSN-77 or TSN-66 series it gives 25x.\u003c\/p\u003e\n\u003cp\u003eIts defining feature is 32mm of eye relief, against 17mm for Kowa's TE-11WZ II and TE-80XW. Longer eye relief lets you hold your eye farther from the lens while still seeing the full field. Kowa gives no field of view figure for the TE-20H.\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\u003eXD Lenses for High-Contrast, True-Color Views\u003c\/h3\u003e\n\u003cp\u003eThe TE-20H uses Kowa XD (extra-low dispersion) lenses, which Kowa says deliver crisp images and true color. Extra-low dispersion glass reduces chromatic aberration, or \"color fringing.\"\u003c\/p\u003e\n\u003cp\u003eLess color fringing keeps high-contrast edges, such as a bird against a bright sky, cleaner. Kowa states nothing further about the coatings or lens layout of the TE-20H.\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\u003eLong Eye Relief in Use\u003c\/h3\u003e\n\u003cp\u003eKowa describes the TE-20H as a long eye relief eyepiece with 32mm of eye relief, but makes no specific claim for eyeglass wearers.\u003c\/p\u003e\n\u003cp\u003eKowa does not describe an eyecup for the TE-20H in its material.\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\u003eDigiscoping\u003c\/h3\u003e\n\u003cp\u003eKowa makes no specific digiscoping claim for the TE-20H.\u003c\/p\u003e\n\u003cp\u003eThe TSN-99, TSN-88 and TSN-66 bodies have an adapter accessory collar for Kowa digiscoping adapters, which Kowa says turns the scope into a super telephoto lens system. Kowa does not name a specific adapter for this eyepiece.\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\u003eKowa TE-20H vs. TE-11WZ II and TE-80XW Eyepieces\u003c\/h3\u003e\n\u003cp\u003eChoosing the right eyepiece for your TSN-99\/88\/77\/66 scope involves a trade-off between eye relief, magnification versatility, and field of view. Kowa's figures for the three eyepieces:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKowa TE-11WZ II Zoom:\u003c\/strong\u003e a magnification range of 30-70x (on TSN-99) or 25-60x (on TSN-88\/66), with 17mm of eye relief. Choose it if you want to change magnification to scan for a subject and then zoom in for detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKowa TE-80XW Extreme Wide Angle:\u003c\/strong\u003e a fixed 40x (TSN-99) or 35x (TSN-88\/66), with a field of view of 147.6 ft at 1,000 yards on TSN-88\/66 and 17mm of eye relief. Choose it for the widest fixed view of the three.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKowa TE-20H Long Eye Relief:\u003c\/strong\u003e a fixed 30x (TSN-99) or 25x (TSN-88\/77\/66), with 32mm of eye relief, the longest of the three. Kowa gives no field of view figure for it.\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\u003eFitting and Removing the Eyepiece\u003c\/h3\u003e\n\u003cp\u003eThe TSN-99, TSN-88 and TSN-66 bodies have an eyepiece release button, which you press to remove the eyepiece.\u003c\/p\u003e\n\u003cp\u003eKowa's material gives no step by step fitting procedure for this eyepiece: follow the instruction manual of your spotting scope.\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\u003eCare and Maintenance for Your Kowa Eyepiece\u003c\/h3\u003e\n\u003cp\u003eTo maintain the optical quality of your TE-20H, it is important to keep the lens surfaces clean. Keep it protected from dust when it is off the scope body. For cleaning, first remove any loose dust or grit with a blower bulb or a soft camel hair brush.\u003c\/p\u003e\n\u003cp\u003eFor fingerprints or smudges, use a dedicated lens cleaning fluid and a microfiber cloth. Apply a drop of fluid to the cloth, not directly to the lens, and gently wipe in a circular motion from the center outwards. Kowa's material gives no care instructions specific to the TE-20H.\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\u003eKowa's Limited Lifetime Warranty\u003c\/h3\u003e\n\u003cp\u003eThe Kowa TE-20H eyepiece is covered by Kowa's Limited Lifetime Warranty for the original owner when purchased from an authorized North American retailer. This warranty covers defects in materials and workmanship under normal use; it does not cover damage from unauthorized repair, alteration, abuse or misuse, or normal wear and tear. Kowa requests product registration within 30 days of purchase.\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\"\u003eWhich Kowa spotting scopes is the TE-20H eyepiece compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eKowa lists the TE-20H for the \u003cstrong\u003eTSN-99\u003c\/strong\u003e, \u003cstrong\u003eTSN-88\u003c\/strong\u003e, \u003cstrong\u003eTSN-77\u003c\/strong\u003e and \u003cstrong\u003eTSN-66\u003c\/strong\u003e series spotting scopes. It does not list it for the TSN-82SV.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the Kowa TE-20H's 32mm eye relief?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith \u003cstrong\u003e32mm of eye relief\u003c\/strong\u003e (against 17mm on Kowa's TE-11WZ II and TE-80XW), you can hold your eye farther from the lens while still seeing the full field. Kowa makes no specific eyeglass-wearer claim for it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the magnification of the Kowa TE-20H change between scopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe magnification depends on the focal length of the spotting scope body. The Kowa TE-20H provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30x magnification\u003c\/strong\u003e when attached to a TSN-99 series scope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25x magnification\u003c\/strong\u003e when attached to a TSN-88, TSN-77, or TSN-66 series scope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eShould I choose the fixed-power Kowa TE-20H or the TE-11WZ II zoom eyepiece for birding?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf you want the longest eye relief, the \u003cstrong\u003eTE-20H\u003c\/strong\u003e has 32mm. If you prefer to scan at low power and then zoom in to identify a bird, the \u003cstrong\u003eTE-11WZ II\u003c\/strong\u003e zooms 30-70x on TSN-99 or 25-60x on TSN-88\/66, with 17mm of eye relief.\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 Kowa TE-20H have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eKowa lists \u003cstrong\u003e32mm of eye relief\u003c\/strong\u003e for the TE-20H, the longest of its three eyepieces for these scopes. Kowa gives no field of view figure and makes no specific eyeglass-wearer claim for it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the XD lenses in the Kowa TE-20H improve the view?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eKowa says the TE-20H's \u003cstrong\u003eXD lenses\u003c\/strong\u003e deliver crisp images and true color. Extra-low dispersion glass reduces chromatic aberration (color fringing), which is most visible on subjects against a bright background.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Kowa TE-20H for digiscoping?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eKowa makes no specific digiscoping claim for the TE-20H. The TSN-99, TSN-88 and TSN-66 bodies have an accessory collar for Kowa digiscoping adapters, which Kowa says turns the scope into a super telephoto lens system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach and remove the Kowa TE-20H from my TSN-88 scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe TSN-88 body has an \u003cstrong\u003eeyepiece release button\u003c\/strong\u003e used to remove the eyepiece. Kowa's material gives no step by step procedure for this eyepiece, so follow your scope's instruction manual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I choose the fixed 25x power of the Kowa TE-20H over a zoom?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe main reason is its \u003cstrong\u003e32mm eye relief\u003c\/strong\u003e, the longest of Kowa's three eyepieces for these scopes (the TE-11WZ II zoom has 17mm). A zoom lets you change magnification; the TE-20H gives a single 25x (30x on a TSN-99).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Kowa TE-20H work with the TSN-82SV spotting scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eKowa does not list the TE-20H for the TSN-82SV. For the TSN-82SV, Kowa lists the TE-9Z, TE-14WD and TE-17HD eyepieces.\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\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e879110001029\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eLong eye relief fixed eyepiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with\u003c\/td\u003e\n\u003ctd\u003eKowa TSN-99, TSN-88 and TSN-66 PROMINAR spotting scopes (also TSN-77)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification on TSN-99\u003c\/td\u003e\n\u003ctd\u003e30x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification on TSN-88 and TSN-66\u003c\/td\u003e\n\u003ctd\u003e25x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye relief\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLenses\u003c\/td\u003e\n\u003ctd\u003eXD lenses\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\"\u003eKowa TE-20H Eyepiece\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\/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":67954385191197,"sku":"KOW-TE-20H","price":909.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/kowa-te-20h-long-eye-relief-eyepiece-1_7d6c9f15-7d1a-4b4d-85bb-8d3ef823ef1c.jpg?v=1793723874","url":"https:\/\/davidastro.com\/products\/kowa-te-20h-long-eye-relief-eyepiece","provider":"David Astro","version":"1.0","type":"link"}