Kowa TE-80XW Extreme Wide Angle Eyepiece

Product Overview

The Kowa TE-80XW Extreme Wide Angle Eyepiece is a premium fixed-magnification eyepiece for Kowa's PROMINAR TSN-99, TSN-88, TSN-77 and TSN-66 spotting scopes. It provides 35x on the TSN-88/77/66 (40x on the TSN-99) with XD and field-flattener lenses for true colour, pin-sharp detail and an exceptionally wide field. A twist-up eyecup delivers generous eye relief, and the wide, flat field makes it a digiscoper's dream with vignette-free images.

Who Is This Product Best For?

For PROMINAR scope owners who prioritise the widest possible field and image quality at a fixed magnification — serious birders, naturalists and digiscopers. The extreme wide field makes scanning and tracking effortless and is ideal for capturing vignette-free digiscoped images.

Why Choose This Product?

• Extreme wide field of view at a fixed 35x (40x on the TSN-99).
• XD and field-flattener lenses for true colour and edge-to-edge sharpness.
• Generous eye relief with a twist-up eyecup.
• Vignette-free digiscoping — a digiscoper's dream.

Recommended Uses

• Wide-field birding and wildlife observation with a TSN PROMINAR scope.
• Digiscoping with smartphones and cameras.
• Scanning large areas where the widest field helps.

Compatibility and Accessory Notes

• Compatible scopes: Kowa PROMINAR TSN-99, TSN-88, TSN-77 and TSN-66.
• Magnification: 35x on the TSN-88/77/66; 40x on the TSN-99.
• Interchangeable eyepiece; a compatible Kowa PROMINAR scope body is required.
• Not compatible with the TSN-82SV / TSN-660M / TSN-600 or legacy TSN-1/2/3/4 series.

Important Limitations

• This is an accessory eyepiece and requires a compatible TSN PROMINAR scope.
• Fixed magnification — choose the TE-11WZ II if you want a zoom.
• Fits only the TSN-99/88/77/66 PROMINAR series.

Frequently Asked Questions

Which scopes does it fit? The Kowa PROMINAR TSN-99, TSN-88, TSN-77 and TSN-66.

What magnification do I get? 35x on the TSN-88/77/66 and 40x on the TSN-99.

Is it good for digiscoping? Yes — its wide, flat field gives vignette-free digiscoped images.

Zoom or fixed? Fixed magnification; choose the TE-11WZ II for a zoom range.

Our Recommendation

For PROMINAR owners who want the widest, sharpest fixed-power view and superb digiscoping, the TE-80XW is our pick. If you prefer flexible magnification choose the TE-11WZ II zoom, or the TE-20H for maximum eye relief.