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Kowa TSN-99S Prominar 99mm Straight Spotting Scope Zoom Kit

by Kowa
Original price $3,450.00 - Original price $4,199.00
Original price
$3,450.00 - $4,199.00
Current price $4,199.00
In stock
In stock

Ships To: United States & Canada 🇺🇸 🇨🇦

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Kowa Optics TSN-99S Prominar 99mm Straight Spotting Scope - available with or without TE-11WZ II Zoom Eyepiece

Introducing the Kowa TSN-99S Prominar 99mm Straight Spotting Scope Zoom Kit, designed for extended observation, offering brightness, wide field of view, and crystal-clear imagery.

It features a substantial 99mm pure fluorite crystal objective lens paired with a Kowa XD concave lens for excellent lowlight performance and intricate detail.

Enhanced optical coatings combined with this special configuration virtually eliminate chromatic aberration even at high magnification.

The scope incorporates a dual focus mechanism for precise image control, with quick and fine focus options ensuring seamless operation and accurate focusing.

Kowa TSN-99S 30-70x99mm Prominar Straight Zoom Spotting Scope Kit Lifestyle Photo Outdoors

Built with a 100% magnesium alloy structure, the TSN-99 PROMINAR series stands as one of the most portable and lightweight large objective spotting scopes in its class.

Its durability is bolstered by a fully waterproof and nitrogen-sealed shell, as well as Kowa KR coating on the optics.

Kowa TSN-99S 30-70x99mm Prominar Straight Zoom Spotting Scope Kit Lifestyle Photo

The TSN-99 PROMINAR is optimized for digiscoping and fully compatible with the KOWA SYSTEM accessory range, granting access to interchangeable eyepieces, accessories, and digiscoping adapters for DSLR cameras and smartphones, enabling versatility across various applications.


  • 30-70x Magnification: The inclusion of the Kowa TE-11WZ II Zoom Eyepiece in the Zoom Kit for the TSN-99S ensures a versatile magnification range of 30-70x. This eyepiece offers users the flexibility to zoom in for intricate observations of distant subjects or zoom out for wider perspectives, catering to the diverse needs of nature enthusiasts, birdwatchers, and individuals seeking adjustable magnification for a range of observation scenarios.

  • 99mm Objective Lens: Featuring a substantial 99mm objective lens, the spotting scope ensures exceptional light-gathering capabilities. This large diameter facilitates clear and bright images, even in low-light conditions, making it well-suited for a range of outdoor pursuits where lighting conditions may vary.
  • Straight View Eyepiece Design: The straight view eyepiece design enhances ease of use and quick target acquisition. This design is particularly advantageous for users who prefer a direct line of sight, simplifying the process of locating and tracking subjects. Whether observing wildlife or engaging in target shooting, the straight view design provides a comfortable and intuitive viewing experience.
  • Fluorite Crystal Lenses: The spotting scope incorporates advanced fluorite crystal lenses, renowned for their ultra-low dispersion characteristics. This optical innovation minimizes chromatic aberration, ensuring unparalleled resolution and contrast for a premium and true-to-life viewing experience.
  • Waterproof and Fogproof: Engineered to meet JIS Protection Class standards, the spotting scope's housing is fully waterproof. Additionally, it is filled with dry nitrogen gas, preventing internal fogging and ensuring a consistently clear image output. This feature guarantees reliable performance in diverse weather conditions.
  • Dual Focus Mechanism: The spotting scope features a dual focus mechanism, enabling seamless and precise adjustments. The rapid focus smoothly transitions from infinity to a minimum focusing distance in just a few revolutions, while the fine focus option provides pinpoint accuracy, particularly beneficial at higher magnifications or when used with digiscoping setups.
  • All-Surface Multi-Coating: Equipped with an all-surface multi-coating optical system, the spotting scope ensures precise color definition, contributing to brighter and sharper images. This coating minimizes glare and reduces distortions, delivering a high-resolution and contrast-rich viewing experience.
  • Thixomolded Magnesium Alloy Body and Barrel: Crafted through thixotropic molding, the magnesium alloy body and barrel emulate the robustness and tactile sensation of traditional metal bodies while significantly reducing overall weight. This durable construction excels in harsh conditions, instilling confidence and security in users.
  • Kowa's Eyepiece Locking Mechanism: The spotting scope incorporates Kowa's eyepiece bayonet mount with a secure locking mechanism, preventing inadvertent detachment or loss of the eyepiece during use, ensuring enhanced peace of mind.
  • Ideal for Digiscoping with a Camera or Smartphone: Designed for digiscoping, the spotting scope facilitates the capture of images and videos using a camera or smartphone. This feature adds versatility, allowing users to document observations and share experiences through various imaging devices.
  • Suitable for Nature and Bird Watching: Positioned as suitable for nature and bird watching, the Kowa TSN-99S Spotting Scope caters to outdoor enthusiasts who enjoy observing wildlife and the natural world. The combination of magnification options, optical quality, and design features makes it an ideal companion for nature-focused activities.
  • Dual Tripod Mounting Screws: Catering to versatile tripod setups, the spotting scope features a dual mounting screw system that accommodates both 1/4 and 3/8 inch mounts, ensuring stable and secure attachment to tripods of varying specifications.

Kowa TSN-99S 99mm Prominar Straight Zoom Spotting Scope Kit Features Video:


What's Included in the TSN-99S 99mm Zoom Kit:

✓ Kowa TSN-99S Prominar Straight Spotting Scope

✓ Kowa TE-11WZ II 30-70x Wide Zoom Eyepiece

✓ Objective lens cap

✓ Cleaning cloth

✓ Instructional manual

✓ Limited 10 Year Warranty

What's Included with the TSN-99S Spotting Scope Body Only:

✓ Kowa TSN-99S Prominar Straight Spotting Scope - Body Only

✓ Objective lens cap

✓ Cleaning cloth

✓ Instructional manual

✓ Limited 10 Year Warranty



Objective Lens Material: Fluorite Crystal
Objective Lens Effective Diameter: 99mm
Minimum Focusing Distance: 6m
Filter thread: 105mm
Length: 378mm
Weight: 1810g

Kowa 99mm Prominar Straight Zoom Spotting Scope Kit - TSN-99S ZM SET Brochure & Product Manual:

Download the Kowa 99mm Prominar Straight Zoom Spotting Scope Kit - TSN-99S ZM SET Brochure & Product Manual

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