Fieldscope Eyepieces SEP series for PROSTAFF 5
Key Features
SEP eyepieces are exclusively designed for PROSTAFF 5 and are ideal for both observation and digiscoping.
Fieldscope Eyepieces SEP series
- Fully multilayer-coated
- Long eye relief design for viewing comfort with eyeglasses
- Usable for both observation and digiscoping
- Bayonet mount with lock for easy attachment and release
- Water-resistant when attached to Fieldscope body
Specifications
SEP-25
|
with PROSTAFF 5 60/60-A |
with PROSTAFF 5 82/82-A |
| Magnification (x) |
20 |
25 |
| Real field of view(°) |
2.8 |
2.2 |
| Apparent field of view (°)* |
51.3 |
51.3 |
| Field of view at 1,000m (m) (approx.) |
48 |
38 |
| Exit pupil (mm) |
3.0 |
3.3 |
| Relative brightness |
9.0 |
10.9 |
| Eye relief (mm) |
17.6 |
17.6 |
| Weight (g) |
135 |
135 |
SEP-38W
|
with PROSTAFF 5 60/60-A |
with PROSTAFF 5 82/82-A |
| Magnification (x) |
30 |
38 |
| Real field of view(°) |
2.3 |
1.8 |
| Apparent field of view (°)* |
62.1 |
62.1 |
| Field of view at 1,000m (m) (approx.) |
40 |
31 |
| Exit pupil (mm) |
2.0 |
2.2 |
| Relative brightness |
4.0 |
4.8 |
| Eye relief (mm) |
19.0 |
19.0 |
| Weight (g) |
185 |
185 |
SEP-20-60
|
with PROSTAFF 5 60/60-A |
with PROSTAFF 5 82/82-A |
| Magnification (x) |
16-48 |
20-60 |
| Real field of view(°) |
2.6 (at 16x) |
2.1 (at 20x) |
| Apparent field of view (°)* |
39.9 (at 16x) |
39.9 (at 20x) |
| Field of view at 1,000m (m) (approx.) |
45 (at 16x) |
36 (at 20x) |
| Exit pupil (mm) |
3.8 (at 16x) |
4.1 (at 20x) |
| Relative brightness |
14.4 (at 16x) |
16.8 (at 20x) |
| Eye relief (mm) |
16.9 (at 16x) |
16.9 (at 20x) |
| Weight (g) |
225 |
225 |
- *Nikon's calculation method for values of apparent field of view is based on the ISO 14132-1:2002 standard. For details, click here.
