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Get a demoSign inDedicated eyepiece for use with specific Nikon PROSTAFF 5 Fieldscope. Designed for digiscoping with certain COOLPIX cameras. Eye Relief (mm) 16.9 Weight (g) 225 Angular field of view (Apparent/degree) 39.9 (at 16x) Magnification (x) (with PROSTAFF 5 60/60-A) 16-48 Magnification (x) with PROSTAFF 5 82/82-A 20-60 Real field of view(°) (with PROSTAFF 5 60/60-A) 2.6 (at 16x) Real field of view(°) (with PROSTAFF 5 82/82-A) 2.1 (at 20x) Field of view at 1,000m (m) (approx#) (with PROSTAFF 5 60/60-A) 45 (at 16x) Field of view at 1,000m (m) (approx#) (with PROSTAFF 5 82/82-A) 36 (at 20x) Exit pupil (mm) (with PROSTAFF 5 60/60-A) 3.8 (at 16x) Exit pupil (mm) (with PROSTAFF 5 82/82-A) 4.1 (at 20x) Relative brightness (with PROSTAFF 5 60/60-A) 14.4 (at 16x) Relative brightness (with PROSTAFF 5 82/82-A) 16.8 (at 20x) |