Product Description

The Nikon 20-45X (60) Zoom/25-56X (78) Zoom Eyepiece MC provides a clear and distinct image with 13-40x magnification when used with ED50, 20-60x magnification when used with III / EDIII, and 25-75x magnification when used with ED82.

All lenses are anti-reflective, which gives better light input and fewer reflections. The adjustable eyecup also makes it easy to get a comfortable viewing position.


Key Features of the Nikon 20-45X (60) Zoom/25-56X (78) Zoom Eyepiece MC

  • Fits Nikon Fieldscope III / EDIII, ED82, and ED50
  • All lenses are anti-reflective
  • Eco-glass
  • 13-30x magnification with Fieldscope ED50
  • Angular field of view
  • Relative brightness
  • High Resolution

Magnification

20-45x when attached to a Fieldscope III or EDIII; 25-56x when attached to a Fieldscope ED82; and 13-30x when attached to a Fieldscope ED50.

Angular field of view (Real/degree)

2 at 20x magnification when attached to a Fieldscope III or EDIII; and 1.6 at 25x magnification when attached to Fieldscope ED82; and 3 at 13x magnification when attached to Fieldscope ED50

Angular field of view (Apparent/degree)

38.5 for all models. At 20x magnification when attached to a Fieldscope III or EDIII; at 25x magnification when attached to a Fieldscope ED82; and at 13x magnification when attached to a Fieldscope ED50.

Field of view at 1,000m

Approximately 35 m when attached to a Fieldscope III or EDIII at 20x magnification; 28 m when attached to a Fieldscope ED82 at 25x magnification; and 52 m when attached to a Fieldscope ED50 at 13x magnification.

Exit pupil

3 mm at 20x magnification when attached to a Fieldscope III or EDIII; 3.3 mm at 25x magnification when attached to a Fieldscope ED82; and 3.8 mm at 13x magnification when attached to a Fieldscope ED50.

Relative brightness

9 at 20x magnification when attached to a Fieldscope III or EDIII; 10.9 at 25x magnification when attached to a Fieldscope ED82; and 14.4 at 13x magnification when attached to a Fieldscope ED50.

Eye relief

12.9 mm for all models at 20x magnification when attached to a Fieldscope III or EDIII; 25x magnification when attached to a Fieldscope ED82; and 13x magnification when attached to a Fieldscope ED50.


  • MPN - BDB90063
  • GTIN - 018208074662
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Nikon 20-45X (60) Zoom/25-56X (78) Zoom Eyepiece MC

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SKU
137398
Price Slashed $429.00
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Product Overview

  • Fits Nikon Fieldscope III / EDIII, ED82, and ED50
  • All lenses are anti-reflective
  • Eco-glass
  • 13-30x magnification with Fieldscope ED50
  • Angular field of view
  • Relative brightness
  • High Resolution
+ Read more

The Nikon 20-45X (60) Zoom/25-56X (78) Zoom Eyepiece MC provides a clear and distinct image with 13-40x magnification when used with ED50, 20-60x magnification when used with III / EDIII, and 25-75x magnification when used with ED82.

All lenses are anti-reflective, which gives better light input and fewer reflections. The adjustable eyecup also makes it easy to get a comfortable viewing position.


Key Features of the Nikon 20-45X (60) Zoom/25-56X (78) Zoom Eyepiece MC

  • Fits Nikon Fieldscope III / EDIII, ED82, and ED50
  • All lenses are anti-reflective
  • Eco-glass
  • 13-30x magnification with Fieldscope ED50
  • Angular field of view
  • Relative brightness
  • High Resolution

Magnification

20-45x when attached to a Fieldscope III or EDIII; 25-56x when attached to a Fieldscope ED82; and 13-30x when attached to a Fieldscope ED50.

Angular field of view (Real/degree)

2 at 20x magnification when attached to a Fieldscope III or EDIII; and 1.6 at 25x magnification when attached to Fieldscope ED82; and 3 at 13x magnification when attached to Fieldscope ED50

Angular field of view (Apparent/degree)

38.5 for all models. At 20x magnification when attached to a Fieldscope III or EDIII; at 25x magnification when attached to a Fieldscope ED82; and at 13x magnification when attached to a Fieldscope ED50.

Field of view at 1,000m

Approximately 35 m when attached to a Fieldscope III or EDIII at 20x magnification; 28 m when attached to a Fieldscope ED82 at 25x magnification; and 52 m when attached to a Fieldscope ED50 at 13x magnification.

Exit pupil

3 mm at 20x magnification when attached to a Fieldscope III or EDIII; 3.3 mm at 25x magnification when attached to a Fieldscope ED82; and 3.8 mm at 13x magnification when attached to a Fieldscope ED50.

Relative brightness

9 at 20x magnification when attached to a Fieldscope III or EDIII; 10.9 at 25x magnification when attached to a Fieldscope ED82; and 14.4 at 13x magnification when attached to a Fieldscope ED50.

Eye relief

12.9 mm for all models at 20x magnification when attached to a Fieldscope III or EDIII; 25x magnification when attached to a Fieldscope ED82; and 13x magnification when attached to a Fieldscope ED50.


  • MPN - BDB90063
  • GTIN - 018208074662
+ Read more
Degree of magnification 13-30x (with ED50 / ED50-A)
20-45x (with III/III-A/EDIII/ EDIII-A)
25-56x (with ED82 / ED82-A)
Anti-reflex treatment Yes, on all lenses
Field of view at 1000 m 52 m (with ED50 / ED50-A)
35 m (with III/III-A/EDIII/
EDIII-A)
28 m (with ED82 / ED82-A)
Relative Brightness 14.4 (with ED50 / ED50-A)
9.0 (with III/III-A/EDIII/EDIII-A)
10.9 (with ED82 / ED82-A)
Starting pupil 3.8 mm (with ED50 / ED50-A)
3 mm (with III / III-A / EDIII / EDIII-A)
3.3 mm (with ED82 / ED82-A)
Viewing distance 12.9 mm
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What’s In The Box
  • Nikon 20-45X (60) Zoom/25-56X (78) Zoom Eyepiece MC
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