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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

FSA-L1

Fieldscope Digital SLR Camera
Attachment FSA-L1
(Combination Example)

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

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.

FSB-1

Fieldscope Digital Camera
Bracket FSB-1
(Combination Example)

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

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.

Eyepieces

Wide DS Fieldscope Eyepieces

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 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.

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