MC Fieldscope Eyepieces for Observation
| 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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