Nikon introduces the Digiscoping System - Fieldscope Digital SLR Camera Attachment FSA-L1, Fieldscope Digital Camera Bracket FSB-1, and Wide DS Fieldscope Eyepieces
October 19, 2004
Nikon Vision Co., Ltd., a subsidiary of Nikon Corporation, is proud to announce the release of several new Nikon Fieldscope accessories - Fieldscope Digital SLR Camera Attachment FSA-L1, Fieldscope Digital Camera Bracket FSB-1, and Wide DS Fieldscope Eyepieces.
With the spread of digital cameras in recent years, super-telephoto shooting using a combination of Nikon Fieldscope with digital camera has become increasingly popular among birdwatchers.
So popular, in fact, that it has led to many requests to Nikon for a Fieldscope accessory that enables shooting with digital SLR cameras. The newly released Digital SLR Camera Attachment FSA-L1 is our response. By using it to attach a Nikon D70 or D100 digital SLR camera to your Fieldscope, you can perform super-telephoto shooting with a focal length of 1,500mm (35mm-format equivalent, with Fieldscope ED82 series).
The Digital Camera Bracket FSB-1 allows you to connect the COOLPIX 5200/4200 digital camera and a Fieldscope for shooting photos. And our Wide DS Fieldscope Eyepieces make this connection even easier.
Nikon's Digiscoping System - using the above Fieldscope accessories with Fieldscopes and digital cameras - gives you the perfect combination for super-telephoto shooting during bird- or other nature watching.
Fieldscope Digital SLR Camera Attachment FSA-L1
Transform your Fieldscope into a 1,200mm* or 1,500mm* super-telephoto lens for Nikon digital SLR cameras and take spectacular closeup images.
- *35mm-format equivalent
Features
- Allows use of the camera's Centre-Weighted and Spot metering systems
- Allows use of the camera's Aperture-Priority Auto and Manual exposure modes
- Attaches directly to the Fieldscope and the F mount on a Nikon D70, D100, D2H, D1X or D1H digital SLR camera
Fieldscope Digital SLR Camera
Attachment FSA-L1
(Combination Example)
Specifications
| Dimensions (without cap and screw) | Ø 62 x 143mm |
|---|---|
| Weight | Approx. 320g |
Fieldscope Digital Camera Bracket FSB-1
This bracket enables you to connect a Nikon Fieldscope to the COOLPIX 5200/4200 digital camera.
- *35mm-format equivalent
Features
- For exclusive use with COOLPIX 5200/4200
- Easy attachment to camera
Mount by fastening screw in the camera's tripod socket.
With the new Wide DS eyepiece, a Digital Camera Attachment FSA-1, 2, 3 is not necessary. - Camera battery can be changed even with bracket attached to the camera
- Comes with cable release and non-skid pad
Fieldscope Digital Camera
Bracket FSB-1
(Combination Example)
Specifications
| Dimensions (without screw) | 100 (W) x 81 (D) x 74 (H) mm |
|---|---|
| Weight (without cable release) | 155g |
Calculation of composite focal length
Composite focal length = magnification of eyepiece x 35mm equivalent focal length of COOLPIX digital camera
Calculation of composite F-number (theoretical value)
Composite F-number = magnification of eyepiece x focal length of COOLPIX digital camera' objective diameter of Fieldscope
Composite F-number and composite focal length in combination with COOLPIX 5200/4200
| Eyepiece | 24x/30x Wide DS | ||
|---|---|---|---|
| Fieldscope | Composite focal length | Composite F-number | |
| ED82/ED82 A | With zoom at widest-angle setting | 1,140mm | 2.9 |
| With zoom at maximum telescopic setting | 3,420mm | 8.6 | |
| EDIII/EDIII A/III/III A | With zoom at widest-angle setting | 912mm | 3.1 |
| With zoom at maximum telescopic setting | 2,736mm | 9.4 | |
| Eyepiece | 40x/50x Wide DS | 60x/75x Wide DS | |||
|---|---|---|---|---|---|
| Fieldscope | Composite focal length | Composite F-number | Composite focal length | Composite F-number | |
| ED82/ED82 A | With zoom at widest-angle setting | 1,900mm | 4.8 | 2,850mm | 7.1 |
| With zoom at maximum telescopic setting | 5,700mm | 14.3 | 8,550mm | 21.4 | |
| EDIII/EDIII A/III/III A | With zoom at widest-angle setting | 1,520mm | 5.2 | 2,280mm | 7.8 |
| With zoom at maximum telescopic setting | 4,560mm | 15.6 | 6,840mm | 23.4 | |
- Note:
- Although the theoretical F-number obtained using the above calculation exceeds the camera's F-number, the actual F-number will not.
- We recommend that you use a wide-angle setting for super-telephoto shooting when using a digital compact camera and the Fieldscope.
Also, because it may be difficult to obtain a focus when using the camera's AF function with super-telephoto shooting, we recommend that you take a series of pictures of the same subject.
Wide DS Fieldscope Eyepieces
Wide DS eyepieces make it easier than ever to use a Nikon Fieldscope with a COOLPIX digital camera.
Features
- Offer easy attachment to COOLPIX digital cameras
With COOLPIX 5200/4200: Use FSB-1 bracket only.
With COOLPIX 4300/4500: Use Digital Camera Attachment FSA-3 and attachment ring*. - Vignetting can be reduced by setting zoom to the wide-angle position**
- Rubber eyecup for eye observation is supplied
- *COOLPIX 900 series, 880, 885 and 5000 are attachable using FSA-3 attachment and appropriate attachment ring. For attachment ring compatibility, see the System Diagram.
- **Vignetting may occur with some COOLPIX cameras. (See the table at below.)
Wide DS Fieldscope Eyepieces
Wide DS Eyepiece Specifications
| 24x/30x Wide DS | 40x/50x Wide DS | 60x/75x Wide DS | ||
|---|---|---|---|---|
| Magnification | With Fieldscope III/EDIII series | 24x | 40x | 60x |
| With Fieldscope ED82 series | 30x | 50x | 75x | |
| Angular field of view (real) | With Fieldscope III/EDIII series | 3° | 1.8° | 1.2° |
| With Fieldscope ED82 series | 2.4° | 1.4° | 1° | |
| Angular field of view (apparent) | 72° | 72° | 72° | |
| Field of view at 1,000m | With Fieldscope III/EDIII series | 52m | 31m | 21m |
| With Fieldscope ED82 series | 42m | 24m | 17m | |
| Exit pupil | With Fieldscope III/EDIII series | 2.5mm | 1.5mm | 1mm |
| With Fieldscope ED82 series | 2.7mm | 1.6mm | 1.1mm | |
| Relative brightness | With Fieldscope III/EDIII series | 6.3 | 2.3 | 1 |
| With Fieldscope ED82 series | 7.3 | 2.6 | 1.2 | |
| Eye relief | 18.7mm | 17.8mm | 17mm | |
| Weight | 170g | 180g | 190g | |
- Note:
- These lenses cannot be attached to Fieldscope I series.
- For eye observation, use the rubber eyecup supplied.
- The information is current as of the date of publication. It is subject to change without notice.