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f Kowa Zoom Eyepiece 20x-60x TSE-Z9B for TSN600/660
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Kowa Zoom Eyepiece 20x-60x TSE-Z9B for TSN600/660

The Kowa Zoom Eyepiece TE-Z9B is a high quality zoom eyepiece. A magnification of 20x-60x can be reached and is suitable for the Kowa Spotting Scopes from the following series:

  • Kowa TSN-660M series
  • Kowa TSN-82SV
  • Kowa TSN-600 series

This eyepiece also fits on the following historical spotting scopes:

TSN-603/604, TSN-661/662/663/664, TSN-1/2/3/4,
TS-601/602, TS-611/612/613/614 and
TSN-820/820M (requires TSN-EC1A adapter ring)

Because the TE-Z9B is equipped with a Twist-up eyepiece ring with three positions, the distance between your eye and the eyepiece can be adjusted. In this way, both spectacle and non-spectacle wearers have a pleasant viewing experience.

Main features Kowa Zoom Eyepiece 20x-60x TE-Z9B:

  • Lens elements
    The eyepiece is made of 6 lens groups with a total of 9 lens elements, which gives this eyepiece a large angle of view and a crisp image over the entire field of vision.
  • Twist Up eyepiece
    Suitable for both spectacle and non-spectacle wearers.
  • Waterproof
    The eyepiece is waterproof when mounted.


  TSN-660 serie TSN-600 serie TSN-82SV serie TP-556
Magnification 20x 60x 20x 60x 21x 63x 26x 78x
Eye Relief in mm 16,5 16,0 16,5 16,0 16,5 16,0 16,5 16,0
Exit pupil in mm 3,3 1,1 3,0 1,0 3,9 1,3 3,4 1,1
Brightness 10,9 1,2 9,0 1,0 15,2 1,7 11,3 1,3
Twilight Factor 36,3 62,9 34,6 60,0 41,5 71,9 48,0 82,8
Field of view in ° 1,9° 1,0° 1,9° 1,0° 1,8° 0,95° 1,45° 0,75°
Field of view  / 1000m in m 33,2 17,5 33,2 17,5 31,0 17,0 25,0 13,0


  • 1x Kowa Zoom Eyepiece 20x-60x TE-Z9B
  • 2x Protective caps

In stock

Price incl. VAT: € 339,00


Unique in the optics world!


The Japanese Kowa has been long known in the optics world. The brand produces binoculars and spotting scopes from the highest quality. Kowa can match the best brands in the market very well and is regularly tested in various journals.


Clear and bright

Kowa scopes and viewers are ideal for the most demanding users. The strongest light, detail and clarity are very good. There are also various accessories available such as stay-on bags, camera adapters and eyepieces.

To all Kowa products