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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: € 379,00


Anyone looking for pure quality cannot ignore KOWA. With a range of binoculars and spotting scopes from the absolute top segment, Kowa offers everything for the demanding birder and nature lover. With XD lenses to full fluorite crystal lenses, Kowa binoculars have unprecedented clarity, detail reproduction and edge-to-edge sharpness. With numerous digiscoping solutions, it is also easier than ever to take photos with your smartphone or camera while using your binoculars or spotting scope as a telephoto lens.






KOWA in short:

• Absolute top-quality binoculars and spotting scopes
• 100% fluorite-crystal lenses on flagship models
• Easy digiscoping: taking pictures through the scope with your camera or smartphone
• The brand for birdwatchers, nature lovers, astronomers, plane spotters and researchers
• We offer a 10-year warranty on Kowa products

Click on the links to check out all of Kowa's binoculars and spotting scopes.

Flagship dealers

In the Netherlands BENEL has several KOWA Flagship Dealers. In the stores of these Flagship Dealers you can go for your Kowa binoculars, spotting scopes and digiscoping solutions. They offer the opportunity to test or view the products and can also provide you with the best advice for the purchase of a Kowa binocular or accessory.

Check out here all our Kowa Flagship Dealers from Holland.

Kowa ambassador

Bird watcher Ariaan is the ambassador of Kowa in the Netherlands. Ariaan has been a bird spotter for over 30 years. Over all those years, he has seen more than 200 species of birds. During the bird excursions that Ariaan offers, you can literally see them fly! You'll learn everything about birds at the most beautiful locations. And you'll see them from very near, thanks to Kowa's optics. With the spotting scopes and binoculars, Ariaan and his students observe even the tiniest details.