Kowa TSN-88A with TE-11WZII 25-60X Eyepiece

When crafting the new TSN-88 PROMINAR series, Kowa went back to its roots in optical design… Roots which have made it one of the most respected spotting scope manufacturers in the world.  The goal was to enhance the fundamental feature that sets PROMINAR spotting scopes apart from the competition – Natural Color.  Kowa has always prided itself on manufacturing optics that deliver the purist rendition of the natural world with an image free of negative optical distractions allowing you to immerse yourself into the scene in front of you and focus entirely on the job at hand.

So, how exactly do you improve on an optic that has already set the standard for optical performance? The answer was clear, we had to address how the scope interacts with light.  Kowa engineers improved the unique optical coatings applied not only to the lenses but also the prism in the new TSN-88 PROMINAR spotting scope series.  The result is a spotter that delivers noticeably better light transmission and image quality across the entire color spectrum.  Just when you thought they couldn’t get any better… Kowa to the rest of the industry, “Hold my beer!”

* Shipment may arrive late in afternoon, plan accordingly. * Local pickup only - 966 S. Vista Ave. Boise ID 83705.
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The all new KOWA TSN-88 PROMINAR features the familiar 88mm pure fluorite crystal objective lens – the true optical powerhouse at the heart of all PROMINAR flagship optics.  This remarkable lens redefines the standards of color brilliance and eliminates chromatic aberration for one of the most impressive views of the natural world.

BETTER LIGHT TRANSMISSION – Kowa engineers have improved the proprietary optical coatings applied not only to the lenses but also the prism in the new TSN-88 PROMINAR spotting scope series. The result is a spotting scope that delivers even higher levels of light transmission across the entire color spectrum for the most natural and immersive view of your quarry.

TOUGH, LIGHTWEIGHT & PORTABLE – The TSN-88 PROMINAR now benefits from a 100% magnesium alloy structure, making it not only tougher but also lighter than its predecessor.

DUAL FOCUS FOR PINPOINT CONTROL – The dual focus mechanism is the proven system allowing both quick focus for fast action, bringing your subject into focus in just a smooth stroke of the larger in-board knob, while the smaller, outboard fine focus gives you precision control to dial in tack-sharp details for counting age rings or making sure you can see the velvet filaments when you post those scouting pics for your friends to drool over!

WIDE ANGLE ZOOM – Our rentals ship standard with the TE-11WZII wide-angle zoom lens that provides a 25 – 60x zoom range with the TSN-88 for maximum versatility in all wildlife viewing scenarios.  The TE-80XW 40X fixed power extra wide angle lens is available on request.




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Magnification Factor
Objective Size
88.0 mm
Exit Pupil
Eye Relief
Close Focus
Angular Field of View
Linear Field of View
42-23m at 1000m
KR coating
Tripod Adapted
Yes with adapter
Twilight Factor
Bird / nature


3.21 lbs


  • TSN-88A angled spotting scope with KOWA TE-11WZ 25-60X Wide Zoom Eyepiece installed
  • Neoprene Stay On Case for Protection
  • Cleaning Cloth