Kowa TSN-553 15-45x55 PROMINAR Spotting Scope (Angled Viewing)

Kowa TSN-553 15-45x55 PROMINAR Spotting Scope (Angled Viewing)

Kowa TSN-553 15-45x55 PROMINAR Spotting Scope (Angled Viewing)

B&H # KOTSN553 MFR # TSN-553
Kowa TSN-553 15-45x55 PROMINAR Spotting Scope (Angled Viewing)

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Product Highlights

  • 45° Angled 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
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Kowa TSN-553 overview

  • 1Description

At less than a foot long, the 45° angled-viewing Kowa TSN-553 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 at a 45° angle relative to the optical tube to place your head in a comfortable viewing postion 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
UPC: 879110005072
In the Box
Kowa TSN-553 15-45x55 PROMINAR Spotting Scope (Angled Viewing)
  • Limited 10-Year Warranty
  • Table of Contents
    • 1Description

    Kowa TSN-553 specs

    Design
    Viewing Angle Angled
    Performance
    Magnification 15 - 45x
    Objective Lens Diameter 55 mm
    Field of View 15x: 132.0' @ 1000 yd / 43.9 m @ 1000 m
    45x: 69.0' @ 1000 yd / 23.0 m @ 1000 m
    Minimum Focus Distance 9.8' / 3.0 m
    Exit Pupil Diameter 15x: 3.7 mm
    45x: 1.2 mm
    Eye Relief 16.5 - 16.0 mm
    Features
    Fogproof Yes, Nitrogen Filled
    Water Resistance Waterproof
    General
    Filter Thread 58 mm
    Tripod Mounting Thread 1/4"-20, 3/8"-16
    Dimensions L: 10.6 x H: 6.0 x W: 2.6" / L: 26.9 x H: 15.2 x W: 6.6 cm 
    Weight 28.5 oz / 808.0 g
    Packaging Info
    Package Weight 3.3 lb
    Box Dimensions (LxWxH) 12.8 x 7.4 x 3.6"

    Kowa TSN-553 reviews

    TSN-553 15-45x55 PROMINAR Spotting Scope (Angled Viewing) is rated 4.0 out of 5 by 1.
    Rated 4 out of 5 by from Very nice but... This is a very nice scope but a few issues worth mentioning. At 15x-25x this is amazingly sharp for its size even better than the�Swarovski�ATS-65 HD 20-60x65mm (I reviewed that one as well on B&H site). I tried the two right next to each other and found the Swarovski not as sharp.� At 30X the Kowa on a bright sunny day with not a lot of wind is crystal clear and can not be beat for its size. The brightness of course does not compare but the sharpness is impressive on this little guy. The eye piece is extremely nice but I was a bit disappointed with eye relief. I wear glasses and found the view occasionally somewhat limiting and depending on the position I was standing in and I �would get some side glare occasionally and would cup my hand to block out the light. My wife does not wear glasses and did not complain.� It being so light creates issues and as soon as that zoom kicks in at 45x you will struggle to keep things razor sharp if it is windy or cloudy. You will not lose sharpness thanks to fluorite glass I imagine but brightness is extremely diminished. Still an impressive little scope. The dual focus knobs are great.� So easy to travel with, it is impressively light.� I think Kowa has some amazing scopes and I wish I could afford the 77 or 88 but this size is for a birder that struggles with weight in the field I imagine, and doesn't mind losing some of the pop bigger scopes offer.� I think Kowa would have done a better job investing in improving a 60 to 65mm scope and making that technology light for it to be fully functional for birders. I think the perfect scope would be a 60 from Iowa which adds a lit more pop to the view and increase the eye relief a bit but I am sure there are limits to what they can create.� I am trying out the some other 65's in a similar price range. In my opinion the scope is a bit overpriced for the difficulties I had with sharpness and brightness in windy and cloudy conditions. Still was impressive for its size! I will repeat- on a sunny day with little wind you will be blown away by the view of this little scope. And if you mostly bird in calm and sunny areas you will not be disappointed.� I struggled getting some shorebirds ID'd on the beach on a windy day that were very far away but till was able to see them as long as I was patient and weighed the tripod down... Hope this review helps make an informed decision.
    Date published: 2018-05-09
    • y_2018, m_7, d_16, h_19
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