Kowa Spotting scope TSN-99S PROMINAR Zoom-Set 30-70x99 (73446)

The Kowa TSN-99 PROMINAR is the pinnacle of Japanese optical design, combining over six decades of expertise to deliver unmatched clarity, brightness, and detail. Featuring a large 99mm pure fluorite crystal objective lens paired with a Kowa XD concave lens, this spotting scope offers superior low-light performance and eliminates chromatic aberration, even at high magnifications. Designed for nature observation, birdwatching, hunting, sporting shooters, and digiscoping enthusiasts, the TSN-99 PROMINAR provides exceptional optical quality in a durable and portable design.

Key Features:

• Large 99mm Objective Lens: The fluorite crystal lens combined with a Kowa XD concave lens ensures outstanding brightness, exquisite detail, and virtually zero chromatic aberration.

• Dual Focus System: Quick focus enables rapid adjustments, while fine focus provides precise fingertip control for ultimate accuracy, even when wearing gloves.

• Elegant Design: The TSN-99 PROMINAR features smooth ergonomics and bold styling for comfort and ease of use during extended field sessions.

• Durable Construction: Built to withstand harsh environments, the magnesium alloy chassis is lightweight yet strong. The KR coating repels dirt, moisture, and dust from the lens surface for added protection.

• Lightweight Portability: The thixotropic moulding process creates a magnesium alloy structure that is compact and lightweight without compromising strength, making this scope highly portable compared to other large objective models.

• Designed for Digiscoping: Easily transform the scope into a super telephoto lens system using Kowa’s extensive range of digiscoping adapters for DSLR cameras, compact systems, and smartphones. The fluorite crystal lens ensures exceptional image quality with zero chromatic aberration and sharpness ideal for photography.

Kowa System Compatibility:
The TSN-99 PROMINAR is part of the Kowa System, featuring an accessory collar that allows users to connect a wide variety of accessories to expand its functionality for observation, digiscoping, smartphone photography, and astronomy applications.

Specifications

Capacity:

• Type of Build: Zoom spotting scope

• Viewing Posture: Straight view

• Magnification: 30–70x

• Front Lens Diameter: 99 mm

• Exit Pupil: 3.3 mm (30x) – 1.4 mm (70x)

• Eye Relief: 17 mm

Optics:

• Glass Material: Fluorite crystal

• Lens Coating: Fully multi-coated

Focusing System:

• Mechanism: Dual speed focusing

Construction Details:

• Tube Material: Magnesium alloy

• Splash-Proof & Watertight: Yes

• Lens Hood Included: Yes

• Turnable Pipe Clamp & Threaded Tripod Connector: Yes

• Inert Gas Charge (Fog-Proof): Yes

Field of View and Close Focus Limits:

• True Field of View (°): 2.0° (30x) – 1.13° (70x)

• Apparent Field of View (°): 59–70°

• Field of View at 1,000 m (m): 35 m (30x) – 20 m (70x)

• Close Focus Limit (m): 6 m

General Information:

• Series Name: TSN-99 PROMINAR

• Weight: 2205 g

• Length: 364 mm

• Color Scheme: Green

Area of Application Ratings:

• Nature Observation & Bird Watching: Very good suitability

• Hunting & Sporting Shooters: Very good suitability

• Digiscoping: Very good suitability

The Kowa TSN-99 PROMINAR combines cutting-edge optics with rugged portability, making it an excellent choice for outdoor enthusiasts who demand high performance in all conditions.