NIKON 20-45X zoom eyepiece (OS-N2045X)

The technical details behind this eyepiece

Increase your magnification capability with the Nikon 20-45X/25-56X Zoom MC Fieldscope Eyepiece. This versatile eyepiece offers 20-45x magnification when used with the Fieldscope III or EDIII and can provide a 2-degree real angular field of view, approximately 35m at 1000m, and 9 relative brightness at 20x magnification. It can also offer 25-56x magnification when used with the Fieldscope ED82, and it can provide a 1.6-degree real angular field of view, approximately 28m at 1000m, and 10.9 relative brightness at 25x magnification. Moreover, it can also be used with Fieldscope ED50 which provides 13-30x magnification.

Key Features

    Provides variable magnification
    14.4 (at 13x) Relative Brightness
    Weighs 100g
    12.9mm (at 13x) eye relief

Top three reasons we think you will love this eyepiece

    Easy to use
    Impressive magnification
    Versatile

Fieldscope
Exit pupil (mm)    3.8mm (at 13x)
Field of view at 1,000 m (m)    52 (at 13x)
Angular field of view (Apparent/degree)    38.5° (at 13x)
Angular field of view (Real/degree)    3.0° (at 13x)
Relative brightness    14.4 (at 13x)
Magnification (x)    13-30x
Weight (g) (body only)*1    100g
Eye relief (mm)    12.9mm (at 13x)

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