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Kowa TSN-99 PROMINAR 99mm Straight Spotting Scope with TE-11WZ II 30-70x Eyepiece

SKU: KWTSN99SZMSE MFR: TSN-99S ZM SET
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Key Features

  • Experience unparalleled clarity with the Kowa 99mm spotting scope's fluorite crystal lens.
  • Achieve stunning detail with the 30-70x zoom eyepiece, perfect for birdwatching and nature observation.
  • Enjoy a wide field of view for easy target acquisition, enhancing your long-range viewing sessions.
  • The nitrogen-filled Kowa spotting scope is fogproof, ensuring clear views in any weather condition.
  • Its robust construction and water-resistant design make this spotting scope ideal for field use.
  • Easily mount the Kowa TSN-99 spotting scope on standard tripods for stable, extended viewing.
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Special Order?Estimated to Ship: 08/21/2025
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Kowa TSN-99 PROMINAR Specifications

Design
  • Viewing Angle

    Straight

  • Prism Type

    Roof

Performance

Jump to...
  • Magnification

    30 to 70x

  • Objective Lens Diameter

    99mm

  • Field of View

    30x: 105.4' @ 1000 yd (35m @ 1000m)
    70x: 60.2' @ 1000 yd (20m @ 1000m)

  • Minimum Focus Distance

    19.7' (6m)

  • Exit Pupil Diameter

    30x: 3.3mm
    70x: 1.4mm

  • Eye Relief

    17mm

Features

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  • Fogproof

    Yes, Nitrogen Filled

  • Environmental Resistance

    Water-Resistant (Unrated)

General

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  • Material

    Objective Lens: Fluorite Crystal

  • Battery / Runtime

    No

  • Filter Thread

    105mm

  • Tripod Mounting Thread

    1/4"-20 Female, 3/8"-16 Female

  • Dimensions

    Without Eyepiece: 14.3" (36.32cm)

  • Weight

    Without Eyepiece: 4 lbs (1.83kg)

  • UPC Code

    879110008967

About Kowa TSN-99 PROMINAR

99mm Pure Fluorite Crystal Large Objective Series.
The TSN-99 PROMINAR Series is the evolution of over seven 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.

Superior Low Light Performance
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.

Robust and 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 while 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.

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.

Built To Last
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.

Form and 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.

Perfect Digiscoping
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 a wide range of digiscoping accessories. All are just a few simple steps away for direct connection to the spotting scope body and you are ready to start digiscoping.

TE-11WZ II Eyepiece
Kowa eyepieces seamlessly complement Kowa spotting scopes with their exceptional optical quality, enhancing the overall viewing experience by delivering crisp, clear images and ensuring unparalleled precision in observation.

Kowa TSN-99 PROMINAR Features

  • 99mm PROMINAR Pure Fluorite Crystal Objective Lens
  • Includes TE-11WZ II 30-70x Wide Angle, Zoom Eyepiece
  • Portable and Lightweight
  • Magnesium Alloy Body
  • Dual Focus for Fast and Precise Focusing
  • Straight Viewing Version
  • Ideal for Digiscoping with a Camera or Smartphone

Warranty Information

This product has a limited lifetime warranty.

Key Features

  • Experience unparalleled clarity with the Kowa 99mm spotting scope's fluorite crystal lens.
  • Achieve stunning detail with the 30-70x zoom eyepiece, perfect for birdwatching and nature observation.
  • Enjoy a wide field of view for easy target acquisition, enhancing your long-range viewing sessions.
  • The nitrogen-filled Kowa spotting scope is fogproof, ensuring clear views in any weather condition.
  • Its robust construction and water-resistant design make this spotting scope ideal for field use.
  • Easily mount the Kowa TSN-99 spotting scope on standard tripods for stable, extended viewing.

What's in the box:

  • Kowa TSN-99 PROMINAR 99mm Straight Spotting Scope Body
  • TE-11WZ II 30-70x Eyepiece
  • Objective Lens Cap
  • Cleaning Cloth
  • Kowa Lifetime Limited Warranty