At less than a foot long, the 45° angled-viewing Kowa TSN-553 15-45×55 Spotting Scope is the ideal companion wherever you go to glass. It employs the ultra-low dispersion PROMINAR fluoride glass that eliminates chromatic aberrations that, when coupled with the fully multi-coated optics and two-speed focusing mechanism, produce bright and clear tack-sharp high-contrast images with accurate color rendition for an immersive observational experience. The impressive 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-550 is configured with the eyepiece set at a 45° angle relative to the optical tube to place your head in a comfortable viewing position whether you’re standing, sitting, or lying prone.
To reduce weight, without sacrificing strength or durability, the chassis is made of a polycarbonate material and wrapped in a slip-resistant armoring. A rubberized and textured zoom collar and focus wheel 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-553 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
• Wide 15-45x fixed zoom eyepiece
• 55mm aperture
• Porro prism optical path
• Ultra-low dispersion PROMINAR fluorite glass elements eliminate chromatic aberration, which causes halos, astigmatism, and fringing, for improved color rendition and contrast
• Fully multi-coated optics maximize light transmission through the lens to improve image brightness, color rendition, and contrast
• 132-69′ field of view at 1000 yards
Use and Handling
• 45° angled eyepiece to place the user’s head in a comfortable viewing position when sitting, standing, or lying prone
• Integrated aiming sight
• Smooth and precise fine and coarse two-speed focusing mechanism moves through the entire focus range in two turns
• Rubberized and textured zoom collar and focusing wheel
• 58mm 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
• Long 16.5-16mm eye relief
• 3.7-1.2mm exit pupil
Construction Details
• Lightweight and impact-resistant polycarbonate chassis
• Nitrogen filled, IPX7-rated to be waterproof and resistant to internal fogging when moving through extreme temperature changes and conditions
• Oil-resistant KR exterior lens coatings makes it easy for dirt, sap, and oil to be cleaned off without smudges or residue
• Retractable sunshade reduces glare and lens flare and keeps snow and rain off the objective for clearer viewing
• Extremely lightweight: 28 ounces
