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Kowa - TSN-554 15-45x55 PROMINAR Spotting Scope (Straight Viewing)

 
  • Straight-Through Viewing
  • 15-45x Zoom Eyepiece
  • 55mm Objective Lens
  • Ultra-Low Dispersion PROMINAR Glass
Lease to Own at
est. $99 /week*
Availability: In stock
SKU
TSN-554

A Guide to Birding with Spotting Scopes

At less than a foot long, the straight-through viewing Kowa TSN-554 15-45x55 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 in-line with the optical tube for straight-through viewing to make acquiring subjects easy and tracking moving subjects fast.

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-554 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.

User Manual

0.9 MB


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


    Straight-though viewing eyepiece makes finding subjects fast and tracking moving targets easy

  • 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

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