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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


Dimensions (without cap and screw): ø62 x 143mm
Weight: Approx. 320g


  • Allows use of the camera's Centre-Weighted and Spot metering systems
  • Matrix metering can be used with Nikon D2 series
  • 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 Digital SLR camera.
  • Note:
    • Because the optical system has different characteristics from ordinary interchangeable lenses, when the FSA-L1 and Fieldscope are used for shooting with an SLR camera, exposure may vary with the camera model. With a digital SLR camera, confirm the exposure indication in the external LCD and use exposure compensation if necessary.
    • Camera's autofocusing mode cannot be used. Perform focusing using the Fieldscope focusing ring.

Combination example:
Fieldscope ED82+FSA-L1+D70

Compatible Nikon Digital SLR cameras:

(as of June, 2015)
D4 series, D3 series, D2 series, D1 series*, Df, D810 series, D800 series, D750, D700, D610, D600, D300 series, D200, D100, D7200, D7100, D7000, D90, D80, D70 series, D5500, D5300, D5200, D5100, D5000, D3300, D3200, D3100, D3000, D60, D50, D40 series digital SLR camera

  • *Only with FSA-L1.

About film SLR cameras:
Usable models: F6, F5, F100, F65, F55, FM10, FE10

  • With F80, F75, FM3A, user must determine the exposure; Nikon does not recommend using these models.
  • With any of the above models, slight vignetting may occur at the periphery of the image.

Compatible Fieldscope models:

Fieldscope ED82/Fieldscope ED82 A
Fieldscope III/Fieldscope III A
Fieldscope EDIII/Fieldscope EDIII A

  • Note:
    • We strongly recommend using an ED-type model, which employs ED glass to minimize chromatic aberration and keep images sharp.
    • ED78 series, II series and I series can also be used (I series can be used only with 24x/30x Wide MC and Fieldscope Digital SLR Camera Attachment FSA-L1).
    • We do not recommend connecting the FSA-L1 with the Fieldscope ED50/50 A because this combination may be physically imbalanced in actual use and could compromise product integrity.

F-number and focal length in combination with Fieldscope and digital SLR camera

Fieldscope Selector settings*1 F-number Focal length (35mm equivalent focal length)*2
ED82/ED82 A A 13 1,000 (1,500) mm
III/III A/II series/I B 800 (1,200) mm
EDIII/EDIII A/EDII series/ED C 800 (1,200) mm
ED78/ED78 A D 1,000 (1,500) mm
  • *1Depending on the Fieldscope model used, by setting the selector on the body of the FSA-L1, F-number and focal length data will be transmitted to the camera.
  • *2The picture angle of 35mm-format SLR cameras differs from that of digital SLR cameras due to the difference in the size of captured images. 35mm equivalent focal length is 1.5x (2x for High-Speed Cropped Image of the D2X) of the focal length of the lens used.