The Nikon Sportstar 10x25 (5° field of view) is a compact, pocket-sized binocular designed for high portability during travel, sports, and outdoor activities. This specific older model features a 5-degree real angular field of view, which is narrower than more recent "EX" or "Wide Field" versions.
Key Specifications:
Magnification: 10x.
Objective Diameter: 25 mm.
Field of View: 5° real angle (approx. 262 ft at 1,000 yards).
Exit Pupil: 2.5 mm, which is standard for compacts but may result in a darker image in low-light conditions.
Eye Relief: Approximately 10 mm to 13 mm depending on the specific sub-model.
Weight: Extremely lightweight at roughly 9.5 oz (270–300g).
Design: Foldable dual-hinge roof prism design for easy storage.
