Digiscoping
40x/50x Wide DS Eyepiece
Product Code: BDB90098
DS eyepieces make it easier than ever to use a Nikon Fieldscope with a COOLPIX digital camera.
Wide DS Fieldscope Eyepieces
• Using the appropriate FSB series Digital Camera Bracket enables a COOLPIX digital camera to be attached to a Fieldscope.
• Vignetting can be reduced by setting zoom to the wide-angle position*
• Rubber eyecup for eye observation is supplied
*Vignetting may occur with some COOLPIX cameras.
| Eye Relief (mm) | 17.8 |
| Weight (g) | 180 |
| Angular field of view (Apparent/degree) | 64.3 |
| Magnification (x) (With/ED50 A/ED50 A) | 27 |
| Magnification (x) (With III/III A/EDIII/EDIII A) | 40 |
| Magnification (x)(With ED82/ED82 A) | 50 |
| Angular field of view (Real /degree) (With/ED50 A/ED50 A) | 2.7 |
| Angular field of view (Real /degree) (With III/III A/EDIII/EDII | 1.8 |
| Angular field of view (Real /degree) (With ED82/ED82 A) | 1.4 |
| Field of view at 1,000m (m) (approx#) (With/ED50 A/ED50 A) | 47 |
| Field of view at 1,000m (m) (approx#) (With III/III A/EDIII/EDI | 31 |
| Field of view at 1,000m (m) (approx#) (With ED82/ED82 A) | 24 |
| Exit pupil (mm) With/ED50 A/ED50 A | 1.9 |
| Exit pupil (mm) (With III/III A/EDIII/EDIII A) | 1.5 |
| Exit pupil (mm) (With ED82/ED82 A) | 1.6 |
| Relative brightness With/ED50 A/ED50 A | 3.6 |
| Relative brightness (With III/III A/EDIII/EDIII A) | 2.3 |
| Relative brightness (With ED82/ED82 A) | 2.6 |