Kowa TE-80XW Extreme Wide Eyepiece

Paired with the TSN-99 PROMINAR series, it offers 40x magnification and a wide field of view of 39m at 1000m, while the TSN-88, 880, 770, and 66 series deliver 35x magnification and an even wider 45m field of view at 1000m. Whether you're birdwatching, digiscoping or surveying, the TE-80XW allows you to find your subject faster and enjoy a viewing experience that's as close to natural vision as optics allow.

At the heart of its optical performance is Kowa’s XD (extra-low dispersion) lens technology and a field flattener lens, delivering edge-to-edge sharpness and virtually zero chromatic aberration. The result is a breathtakingly sharp, bright image with exceptional contrast across the entire viewing field.

Built for the outdoors, the TE-80XW is fully waterproof, ruggedly constructed, and features Kowa’s KR lens coating, which actively repels dirt, dust, and grime. It’s also fully compatible with the Kowa SYSTEM accessories, including the TSN-EX16 1.6x extender, taking your magnification even further, to 64x with the TSN-99 and 56x with other compatible models, without compromising image quality.

With an eye relief of 17mm, it offers comfortable long-viewing sessions, while its compact and robust design ensures it's ready for any field condition. The Kowa TE-80XW is not just an eyepiece, it’s a digiscoping game-changer, delivering vignette-free, high-definition images that set a new standard in sporting optics.

80° ultra-wide viewing angle for immersive observation

Fixed magnification designed for quick and easy subject acquisition

Edge-to-edge image clarity with field flattener lens technology

XD lens element for high contrast and minimal chromatic aberration

Fully waterproof and weather-sealed for reliable outdoor performance

KR lens coating to repel dust, dirt, and grime

Vignette-free performance ideal for digiscoping

Compatible with Kowa SYSTEM accessories, including magnification extenders

Robust and durable build designed for field use

Premium optical performance engineered by Kowa for demanding users

Included accessories: carry pouch, lens caps, and instruction manual

Backed by a 10-year manufacturer warranty for peace of mind

Magnification:
– 40x (with TSN-99 PROMINAR series)
– 35x (with TSN-88 / 880 / 770 / 66 PROMINAR series)

Field of View (at 1000m):
– 39m (with TSN-99)
– 45m (with TSN-88 / 880 / 770 / 66)

Field of View (degrees): 80°

Exit Pupil Diameter:
– 2.5mm (TSN-99 / TSN-88)
– 1.9mm (TSN-66)

Eye Relief: 17.0mm

Relative Brightness:
– 6.3 (TSN-99 / TSN-88)
– 3.6 (TSN-66)

Twilight Factor:
– 62.9 (TSN-99)
– 55.5 (TSN-88)
– 48.1 (TSN-66)

Optical Elements: XD (extra-low dispersion) lens and field flattener

Weatherproofing: Fully waterproof and sealed construction

Lens Coating: KR coating to resist dirt, oil, and dust

Compatibility:
– Kowa TSN-99 / TSN-88 / TSN-880 / TSN-770 / TSN-66 spotting scopes
– 100% compatible with Kowa SYSTEM accessories, including TSN-EX16 1.6x extender

Included Accessories:
– Eyepiece carry pouch
– Protection caps
– Instruction manual

Warranty: 10-year manufacturer warranty

TE-80XW extreme wide eyepiece
Eyepiece carry pouch
Protection caps
Instruction manual

10 Year Warranty