DS Fieldscope Eyepieces for Digiscoping

DS eyepieces make it easier than ever to use a Nikon Fieldscope with a COOLPIX digital camera.

Wide DS Fieldscope Eyepieces 1. 16x/24x/30x Wide DS 2. 27x/40x/50x Wide DS 3. 40x/60x/75x Wide DS

•	Offer easy attachment to COOLPIX digital cameras With COOLPIX 7900/5200/4200: Use FSB-1A bracket only. With COOLPIX 5600/4600: Use FSB-2 bracket only. With COOLPIX P1/P2: Use FSB-3 bracket only. With COOLPIX P3/P4: Use FSB-4 bracket only. With COOLPIX S series (S1/S3/S5/S6/S7/S7c/S8/S9): Use FSB-5 bracket only. With COOLPIX P5100/P5000: Use FSB-6 bracket only.
•	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.

Note:

•	Wide DS Fieldscope eyepieces can be used with Fieldscope II series and ED78 series; however, they cannot be attached to Fieldscope I series.
•	Wide DS Fieldscope eyepieces can be used with EDG Fieldscopes via optional Fieldscope Eyepiece Mount Adapter EMA-1.

Wide DS Fieldscope Eyepieces Specifications

Fieldscope 16x/24x/30x Wide DS 27x/40x/50x Wide DS 40x/60x/75x Wide DS Magnification (x) 16 24 30 27 40 50 40 60 75 Angular field of view (Real/degree) 4.5 3.0 2.4 2.7 1.8 1.4 1.8 1.2 1.0 Angular field of view* (Apparent/degree) 64.3 Field of view at 1,000m (m) (approx.) 79 52 42 47 31 24 31 21 17 Exit pupil (mm) 3.1 2.5 7.5 1.9 1.5 1.6 1.3 1.0 1.1 Relative brightness 9.6 6.3 7.3 3.6 2.3 2.6 1.7 1.0 1.2 Eye relief (mm) 18.7 17.8 17 Weight (g) 170 180 190

Top : With Fieldscope ED50/ED50 A
Middle : With Fieldscope III/III A/EDIII/EDIII A
Bottom : With Fieldscope ED82/ED82 A
* 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.

Digiscoping System Diagram

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