KOWA TE-80XW Extreme wide eyepiece

80 degree extreme wide angle eyepiece - See more. Immerse yourself into the scene with a 40x magnification and a field of view of 39m (TSN-99) or with a 35x magnification and a field of view of 45m (TSN-88/880/770/66) at 1000m distance.

Find a subject quicker with a wider view of your surroundings.

40x fixed magnification (TSN-99 PROMINAR SERIES)
35x fixed magnification (TSN-88 / 880 / 770 / 66 PROMINAR SERIES)

  • A true optical innovation. Kowa engineers have developed one of the most immersive visual experiences you can expect to see in a sporting optic device.
  • Featuring an advanced optical design, the view through Kowa TE-80XW
  • Extreme wide angle eyepiece can only be described as breath-taking.
  • Incorporating a field flattener and XD lens to produce a view that is completely uniform and ultra sharp across the entire image and virtually zero chromatic aberration.
  • Compatible with Kowa TSN-99 / TSN-88 / TSN-880 / TSN-770 / TSN-66 series spotting scopes
  • Fully waterproof and sealed against the elements. Additional KR coating applied to the lens to actively reduce the build up of dust, dirt and other particles.
  • Digiscoping game-changer - enjoy vignette free, ultra sharp images.
  • 100% compatible with Kowa SYSTEM accessories including the TSN-EX16 1.6x extender for magnification up to 64x when paired with TSN-99 series and 56x with TSN 88/880/770/66 series.


Techn. Details & Downloads
High Performance
Premium Model
XD Optics
ED Lenses
Built Tough
Kowa System
System Compatible
Ultra Wide
Ultra Wide Angle
Fully Sealed
Exit Pupil Diameter: 2.5 (99/880 series) 2.2 (770 series)
Eye Relief: 17.0mm
Field of view (degree): 80
Field of view at 1000m: 39m (99 series) 45m (880/770 series)
Magnification: 40x (99 Series) 35x (880/770 Series)
Relative Brightness: 6.3 (99/880 series) 4.8 (770 series)
Twilight Factor: 59.3 (99 series) 55.5 (880 series) 51.9 (770 series)
Kowa System Infos
TE-80XW Leaflet
What's in the box & Warranty
  • TE-80XW extreme wide eyepiece
  • Eyepiece carry pouch
  • Protection caps
  • Instruction manual

This product is covered by our standard Kowa 10 Year Warranty.
Related Items

Related Items

Kowa TSN-CV88A Twist-up eyepiece protection cap
Twist-up eypiece cap with protection glass for Kowa TSN-99/88/880/770 spotting scope ranges. Compatiable with TE-11WZ / TE-80XW eyepieces as well as discontinued models TE-10Z (20-60x zoom eyepiece) and TE-17W (30x wide-angle eyepiece). The TSN-CV88A features a twist up design allowing the user to set eye-relief as required.  At the opposite end of the spotting scope lies another area of vulnerability. The eyepiece, like the objective lens, is exposed to the full fury of mother nature. Including harsh weather and other degrading environmental conditions. The delicate coatings are at risk of being scratched by the elements as well as the user themselves for example spectacle wearers, persistent handling and insufficient storage or transportation. As with the objective lens, the eyepiece is pivotal for peak performance of your spotting scope, it is also an expensive part to replace. The Kowa TSN-CV88A is the perfect addition to a Kowa scope and part of the Kowa System protective accessory range. The TSN-CV88A imply screws on to the eyepiece and replaces the standard removable eye-relief cap. Ergonomic and comfortable viewing rubber encases a layer of see-through protection glass, forming a see-through protective barrier between the eyepiece optics and external elements. The CV-88A is fully compataible with all Kowa System accessories and digiscoping adapters.

TSN-DA10 Digiscoping Adapter for TSN-99/88/66
The Kowa TSN-DA10 is perfectly suited to the compact and lightweight Micro Four Thirds camera or mirroless system bodies and compact lenses up to 25mm focal length (MFT) or 50mm (full frame). Use with our flagship 99/88/66 series spotting scopes combined with a Kowa TE-11WZ TE-80XW or TE-10Z eyepiece. Kowa believe digiscoping should be easy and affordable – The TSN-DA10 ticks both boxes. Set-up takes less than a minute. Simply unscrew the eyepiece eye-relief cap and screw on the DA10 collar in its place. Screw the DA10 adapter to your MFT lens filter thread. Simply add one of our adapter rings (sold separately) depending on the filter size of your lens. Sizes available: AR28/30/30.5/37/43/46/52/55/58/62/72mm these adapter rings fit between your lens and the DA10. Finally push the connected DA10 and camera body combination over the collar and secure.

Extended inner ring for TSN-PA7A digiscoping adapter The PA7-XWR is an optional ring to use with the current TSN-PA7A digiscoping adapter. This deeper ring allows use of the new TE-80XW eyepiece which is slightly longer in length than the TE-11WZ II eyepiece.

TSN-PA7A Digiscoping Adapter for TSN-99/88/66
Compatible with Full frame, APS-C, mirrorless, compact system and MFT camera bodies. The Kowa TSN-PA7A DSLR digiscoping adapter transforms your KOWA TSN 99/88/66 series scope into an extremely high powered telephoto lens for you D-SLR, or Mirrorless/MFT camera. Allowing you to not only experience stunningly sharp views of the world around you, but also take highly magnified, detailed and vibrant photographs and videos with your D-SLR camera. In contrast to conventional digiscoping, where the image produced by the spotting scope eyepiece is photographed. the TSN-PA7A connects your camera body directly to the body of the scope via a T2 mount. Creating a high powered, yet lightweight and compact telephoto lens, when compared to traditional telephoto lenses. Designed to be used with the Kowa TE-11WZ/ TE-10Z zoom eyepieces and Kowa TSN-99/88/66 series spotting scopes. The design allows for the full use of the zoom eyepiece range giving an amazing focal length reach of up to 2570mm (35mm full frame equiv) when using the TE-11WZ eyepiece or 2750mm with the TE-10Z.

TSN-EX16 1.6x extender for TSN-99/88/66 series
1.6x extender for TSN-99/88/66 spotting scopes compatiable with the following eyepieces:TE-11WZ, TE-80XW, TE-10Z, TE-17W, TE-20H The Kowa TSN-EX16 increases the magnification of the current Kowa TSN-99/88/66 spotting scopes by 1.6x when combined with the original eye-piece. Kowa optical technology and superior lens coatings deliver superb optical performance with less than 5% light loss even at high magnifications. Perfect for long range observation and digiscoping for both terrestrial and astronomical subjects. The high quality engineered TSN-EX16 is easily mounted on the accessory thread of the Kowa TSN-99/88/66 scopes between scope body & eyepiece. The styling perfectly complements the spotting scope body. The TSN-EX16 features a bayonet mount for Kowa compatible eyepieces. (see chart opposite).The TSN-EX16 can be used on angled and straight spotting scopes from the Kowa TSN-99/88/66 series. The TSN-EX16 1.6x Extender is fully compatible with a range of Kowa digiscoping adapters. Incredible telephoto power far beyond any conventional photography system and much more compact.


Product Finder

New to Kowa, or not sure which optic is the right one for you? Dive into our introductory product guide, curated to help you find the perfect optical companion for your needs within a few seconds.