Eyepieces for Fieldscopes

•	All lenses are multilayer coated for maximum brightness of view field. "MC"stands for Multilayer Coating.
•	Turn-slide rubber eyecup is applied to the wide type eyepiece for comfortable viewing. It helps you position your eyes at the correct eyepoint.
•	Optics employ Eco-glass containing no arsenic or lead.

	20x/25x MC eyepiece*		27x/40x/50x MC eyepiece		24x/30x wide MC eyepiece*
	20x/30x/38x wide MC eyepiece		27x/40x/50x wide MC eyepiece		40x/60x/75x wide MC eyepiece
	13-30x/20-45x/25-56x MC zoom eyepiece		13-40x/20-60x/25-75x MC II zoom eyepiece

* Not recommended for ED50/ED50 A.

DS Eyepieces for Digiscoping System

Specifications

Model name Magnifi -cation (x) Angular field of view (Real /degree) Angular field of view (Apparent /degree) Field of view at 1,000m (m) (approx.) Exit pupil (mm) Relative brightness Eye relief (mm) Weight (g) 20x/25x MC With III /III A /EDIII /EDIII A 20 3.0 55.3 52 3.0 9.0 15.2 75 With ED82 /ED82 A 25 2.4 55.3 42 3.3 10.9 15.2 75 27x/40x/50x MC With ED50 /ED50 A 27 1.7 42.0 30 1.9 3.6 9.4 35 With III /III A /EDIII /EDIII A 40 1.1 42.0 19 1.5 2.3 9.4 35 With ED82 /ED82 A 50 0.9 42.0 16 1.6 2.6 9.4 35 24x/30x wide MC*2 With III /III A /EDIII /EDIII A 24 3.0 64.3 52 2.5 6.3 15.1 145 With ED82 /ED82 A 30 2.4 64.3 42 2.7 7.3 15.1 145 20x/30x/38x wide MC*1*2 With ED50 /ED50 A 20 3.6 64.3 63 2.5 6.3 17.9 160 With III /III A /EDIII /EDIII A 30 2.4 64.3 42 2.0 4.0 17.9 160 With ED82 /ED82 A 38 1.9 64.3 33 2.2 4.8 17.9 160 27x/40x/50x wide MC*1*2 With ED50 /ED50 A 27 2.7 64.3 47 1.9 3.6 17.8 165 With III /III A /EDIII /EDIII A 40 1.8 64.3 31 1.5 2.3 17.8 165 With ED82 /ED82 A 50 1.4 64.3 24 1.6 2.6 17.8 165 40x/60x/75x wide MC*1*2 With ED50 /ED50 A 40 1.8 64.3 31 1.3 1.7 17.0 175 With III /III A /EDIII /EDIII A 60 1.2 64.3 21 1.0 1.0 17.0 175 With ED82 /ED82 A 75 1.0 64.3 17 1.1 1.2 17.0 175 13-30x/20-45x/25-56x MC zoom*1 With ED50 /ED50 A 13-30 3.0 (at 13x) 38.5 (at 13x) 52 (at 13x) 3.8 (at 13x) 14.4 (at 13x) 12.9 (at 13x) 100 With III /III A /EDIII /EDIII A 20-45 2.0 (at 20x) 38.5 (at 20x) 35 (at 20x) 3.0 (at 20x) 9.0 (at 20x) 12.9 (at 20x) 100 With ED82 /ED82 A 25-56 1.6 (at 25x) 38.5 (at 25x) 28 (at 25x) 3.3 (at 25x) 10.9 (at 25x) 12.9 (at 25x) 100 13-40x/20-60x/25-75x MC II zoom*1*2 With ED50 /ED50 A 13-40 3.0 (at 13x) 38.5 (at 13x) 52 (at 13x) 3.8 (at 13x) 14.4 (at 13x) 14.1 (at 13x) 150 With III /III A /EDIII /EDIII A 20-60 2.0 (at 20x) 38.5 (at 20x) 35 (at 20x) 3.0 (at 20x) 9.0 (at 20x) 14.1 (at 20x) 150 With ED82 /ED82 A 25-75 1.6 (at 25x) 38.5 (at 25x) 28 (at 25x) 3.3 (at 25x) 10.9 (at 25x) 14.1 (at 25x) 150

*1These eyepieces are not to be used for Fieldscope I series.
*2Turn-and-slide rubber eyecup.
Note: All eyepieces can be used for Fieldscope II series and ED78 series.

Note: Nikon has adopted a calculation method based on ISO 14132-1:2002, and therefore, values for the apparent field of view have changed from those previously stated. For details, click here.

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