Kowa TSN 501-20-40x50 straight Spooting Scope with Eyepiece

At less than 10" long and weighing under a pound, the straight-through viewing Kowa TSN-502 20-40x50 Spotting Scope is designed to be your constant companion wherever you go to the glass. The moderate 50mm lens and fully multi-coated optics provide bright and clear high-contrast images with accurate colour rendition for an immersive observational experience. Its powerful wide zoom range allows you to take in a wide field of view for general viewing purposes, with the ability to draw subjects in close for more detailed observations. This version of the TSN-500 is configured with the eyepiece set in-line with the optical tube for straight-through viewing to make acquiring targets fast and tracking moving subjects easy.

Engineered for performance in all conditions, the chassis is made of a lightweight and strong polycarbonate material wrapped in slip-resistant armouring, with a rubberized and textured zoom collar and focus wheel that make adjustments fast and easy, even when wearing gloves. The optical tube is nitrogen-filled and O-ring sealed to be waterproof and resistant to internal fogging when moving through extreme temperature changes or environmental conditions. To increase your mounting options, the TSN-502 comes outfitted with both a 1/4"-20 and 3/8"-16 tripod attachment—making it compatible with most photo, video, and field tripods on the market.

Optical Performance

Powerful 20-40x zoom eyepiece

50mm aperture

Porro prism optical path

Fully multi-coated optics maximize light transmission through the lens to improve image brightness, colour rendition, and contrast

131-92' field of view at 1000 yards

Use and Handling

Eyepiece is set in-line with the optical tube for straight-through viewing to make finding targets faster and tracking moving subjects easier

Integrated aiming sight

Rubberized and textured zoom collar and single-speed focusing wheel

55mm objective lens filter threads

Twist-up eyecup for comfortable use with or without eyewear

3/8"-16 and 1/4"-20 mount to accommodate most photo, video, and field tripods

14-12.5mm eye relief

2.5-1.25mm exit pupil

Construction Details

Lightweight and impact-resistant polycarbonate chassis

Nitrogen filled, IPX6 rated to be waterproof and resistant to internal fogging when moving through extreme temperature changes and conditions

Extremely lightweight: 14 ounces