Brand: Kowa

Kowa TSN-99 Series 99mm Prominar Spotting Scopes (TSN-99)

Brand: Kowa

Kowa TSN-99 Series 99mm Prominar Spotting Scopes (TSN-99)

  • 99mm pure fluorite crystal objective lens
  • Dual focus for fast and precise focusing
  • Ideal for digiscoping with the camera or smartphone
  • Particularly suitable for nature or bird watching
$3,376.00 USD


Angled (A) Straight (S)

TE-11WZ II Zoom Eyepiece

Included - Spotting Scope Set (- ZM SET) Not Included - Body Only

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$3,376.00 USD

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Product Description

The new TSN-99 Prominar Series is the evolution of over six decades of Japanese optical design and technology. It utilizes the very best from Kowa’s optical heritage and benefits from features, technology and engineering developed by generations of Kowa optical experts.


Dual Focus

The dual focus system is one of the defining features of Kowa flagship spotting scopes, highly engineered to give ultimate control, the TSN-99 Prominar is no exception, the optic is a dream to use out in the field. The dual focus mechanism is the gateway to controlling the image between your eye and the scope. Exquisite engineering is refined to make operation flawless. Quick focus allows for fast action to bring your subject in to detail in just a few smooth revolutions, whilst Fine focus gives pin-point, finger-tip control offering the ultimate in focusing accuracy with minute adjustments possible even when wearing gloves.

Form & Function

The TSN-Prominar looks like no other scope, a statement of style and sophistication with bold details. But looks aren’t everything, every slender curve has been considered at the design stage and serves a purpose with comfort and ease of operation at the forefront. Smooth ergonomics combined with high end engineering delivers a scope that is easy to use out in the field for long periods of time.

Kowa Pure Fluorite Crystal

Fluorite crystal delivers the best viewing experience available today, eliminating virtually all chromatic aberration and delivering images of outstanding resolution and contrast.

Fluorite is considerably more difficult to handle than optical glass, it requires highly advanced processing technology.

Kowa put forth extra care, time and technique to produce the ultimate viewing experience with a pure fluorite crystal lens. It’s what makes Kowa unique.

Large 99mm Objective Lens

A large 99mm pure fluorite crystal objective lens paired with a Kowa XD concave lens produces superior lowlight performance and exquisite detail. This special combination combined with improved optical coatings virtually eliminates chromatic aberration even at high magnification.

Built to Weather the Storm

The TSN-99 Prominar series is built to last a life time - use it with absolute confidence even in the harshest of environments. Your reliable, life-long partner in any excursion to the great outdoors. The objective lens has further protection from the elements with Kowa’s unique KR coating which actively repels dirt, moisture and dust from building on the surface.

Robust & Lightweight

Under the beautiful shell of TSN-99 Prominar, a super strong magnesium alloy chassis is utilized, this lightweight material is created using a sophisticated molding process called thixotropic molding, the result: A material with all the strength benefits of metal whilst still reaming lightweight. By employing the use of a 100% magnesium alloy structure, the TSN-99 Prominar series spotting scope is one of the most compact and lightweight in its class of large objective spotting scopes making it more portable than many other models.

Designed to Digiscope

With an easy access collar on the main body of the scope, the TSN-99 Prominar can quickly be transformed in to a super telephoto lens system. Kowa offers one of the widest ranges of digiscoping adapters on the market with solutions for DSLR, compact system and many smartphone models. All are Just a few simple steps away for direct connection to the spotting scope body and you are ready to start digiscoping. The pure fluorite crystal lens is the perfect partner and a dream for any digiscoper with outstanding light transmission, virtually zero chromatic aberration (color blur) and incredible sharpness.

One Accessory Collar, Endless Possibilities

This threaded collar is the gateway to connect a wide range of accessories to expand the pure fluorite crystal TSN-99 Prominar spotting scopes functionality creating a multi-use optic for observation, long range, digiscoping, smartphone and astronomy applications.

What's in the Box

  • TSN-99A/S Prominar spotting scope
  • TE-11WZ II 30-70x wide zoom eyepeice (if purchased)
  • Objective lens cap
  • Cleaning cloth


Model: TSN-99A TSN-99S
Angled/Straight: Angled Straight
Objective Lens Material: Fluorite Crystal Fluorite Crystal
Objective Lens Effective Diameter: 99mm 99mm
Minimum Focusing Distance: 6.0m 6.0m
Filter thread: 105mm 105mm
Length: 378mm 378mm
Weight: 1810g 1810g

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