KOWA TSN-55A PROMINAR
+ 17–40×55

KOWA TSN-55A PROMINAR — Angled spotting scope 17–40×55

Short description
Compact angled spotting scope with a 55 mm fluorite crystal objective and 17–40× wide-angle zoom. Precision optics in a portable format for birdwatching and wildlife observation.

Long description
The Kowa TSN-55A PROMINAR brings detailed observation to a compact, travel-friendly design. Its fluorite crystal objective reduces chromatic aberration, helping reveal fine detail with clear colour definition. The 17–40× wide-angle zoom moves from a broad overview to closer inspection, while dual-speed focusing provides quick adjustment and precise fine tuning. The angled eyepiece supports comfortable viewing during extended tripod sessions. Measuring 255 mm and weighing 965 g including the eyepiece, it is easy to carry into the field.

Uses
Birdwatching, wildlife observation, nature study, walking and travel. Angled viewing suits a lower tripod position. Digiscoping is possible with a separately purchased compatible adapter.

Specifications — both models

• Objective: 55 mm fluorite crystal.

• Magnification: 17–40× wide-angle zoom.

• Actual field of view: 3.64–2.0°; field at 1,000 m: 64–35 m.

• Close focus: 2.8 m.

• Eye relief: 17 mm.

• Exit pupil: 3.2–1.4 mm.

• Coarse and fine focusing.

• Waterproof, nitrogen-filled body; KR protective objective coating.

• Retractable sunshade; 58 mm filter thread.

• TSN-55A: angled viewing; 255 mm; 965 g including eyepiece.

• TSN-55S: straight viewing; 275 mm; 960 g including eyepiece.

Box contents — according to the selected model

• TSN-55A or TSN-55S PROMINAR with integrated 17–40× zoom eyepiece.

• Objective lens cap.

• Eyepiece cap.

• Cleaning cloth.

• Instruction manual.

Tripod, protective case and digiscoping adapter sold separately.