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Kowa TSN-554 50mm Prominar Fluorite Crystal Spotting Scope (Straight Body)

Kowa TSN-554 50mm Prominar Fluorite Crystal Spotting Scope (Straight Body)

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Your Price: CAD $1,939.00
Retail Price:CAD $2,119.00

Your Savings:CAD $180.00(8%)

Generally Ships in 3-5 Business Days
Part Number:TSN-554

Choose Options or Accessories if Applicable

Ships Worldwide - This item qualifies for international shipping. help
Kowa Digiscope Adapters
TSN-AR500: Adapter ring for Kowa Smartphone-Adapters to be used with TSN-500 series [+CAD $49.00]
TSN-DA20: Digiscoping adapter for TSN-550 series Also compati ble with TSN-600/660/82SV series & Highlander eyepieces [+CAD $209.00]
AR42GT: Adapter ring with standard 42mm T2 fi lter thread and protecti on glass Compati ble with TSN-DA20, TSN-DA10 and TSN-DA1 digiscoping adapters. [+CAD $69.00]
TSN-AR66Z: Adapter ring for Kowa Smartphone-Adapters to be used with TSN-550 series Also compati ble with TE-9Z, TE-9WH and discontinued eyepieces TE-9WD, TE-14WE, TE-21WD, TE-21WE, TE-9WD and TE-9WH [+CAD $49.00]

Product Highlights

  • Straight-Through Viewing
  • 15-45x Zoom Eyepiece
  • 55mm Objective Lens
  • Ultra Low-Dispersion PROMINAR Glass
  • Porro Prism Optical Path
  • Fully Multi-Coated Lenses
  • Lightweight Polycarbonate Chassis
  • Nitrogen-Filled, Water and Fogproof
  • 1/4"-20 or 3/8"-16 Tripod Mount
  • Fine and Coarse Two-Speed Focusing

The Prominar 553 and 554 feature Pure Fluorite Objectives like the 880 series in a 55mm package with integrated zoom eyepieces. More compact, lighter and brighter than anything in its class! 

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.

Optical Performance
  • Wide 15-45x fixed zoom eyepiece
  • 55mm aperture
  • Porro prism optical path
  • Ultra low-dispersion PROMINAR fluorite glass elements eliminates chromatic aberration, which causes halos, astigmatism, and fringing, for improved color rendition and contrast
  • Fully multi-coated optics maximize light transmission through 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 easily cleaned off without smudges or residue
  • Retractable sunshade reduces glare and lens-flare, and keeps snow and rain off the objective, clearer viewing
  • Extremely lightweight: 28 ounces


Magnification 15 - 45x
Objective Lens Diameter 55 mm
Field of View 132.0 - 69.0' @ 1000 yd / 43.9 - 23.0 m @ 1000 m
Minimum Focus Distance 9.8' / 3.0 m
Exit Pupil Diameter 3.7 - 1.2 mm
Eye Relief 16.5 - 16.0 mm
Filter Thread 58 mm
Mounting Thread 3/8"-16 or 1/4"-20
Weatherproofing Nitrogen-filled, water and fogproof
Dimensions 11.3 x 3.4 x 2.6" / 28.7 x 8.6 x 6.6 cm
Weight 28.2 oz / 799.5 g

Packaging Info
Package Weight 3.25 lb
Box Dimensions (LxWxH) 12.8 x 7.4 x 3.6"

In the Box
Kowa TSN-554 15-45x55 PROMINAR Spotting Scope (Straight-Viewing)
  • Limited Lifetime Warranty

  • Customer Review
    Kowa TSN-553 15-45x55 Spotting Scope

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