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Home > Cameras - Astronomy > Nikon DIGITAL Lens to CCD Adapter

Nikon DIGITAL Lens to CCD Adapter

Nikon DIGITAL Lens to CCD Adapter
Geoptik Canon EOS Lens to CCD adapter
Price: £119.00
Incl. VAT 20% ( £19.83 )
Product code: 30A191
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Attach your CCD camera to teh latter Nikon Digital Photographic lens for wide flat field astrophotography. Imagine being able to use your cooled CCD camera at F1.4 for wide field shots!
  • Fits all Nikon Digital bayonet fit lenses.
  • Rear T2 male thread (M42x0.75) for CCD camera attachment.
  • 19mm optical path length (not including the length of the T2 thread)
  • clear aperture ... 35mm
  • standard 1/4 photo tripod thread and 3x M5 thread
Using the Nikon digital lens to CCD adapter:
Before inserting the lens turn the locking ring clockwise until it stops. Then insert the lens and turn it clockwise in the bayonet. Finally lock the lens in the adaptor by turning the locking ring counter-clockwise. Achieving the correct focal distance and spacing between the lens and CCD camera: EOS format lenses have a back focus of 45mm from the back of the lens to the camera chip. The Geoptik adapter has a 19mm optical path. Subtract 19mm from 45mm and you have 26mm remaining. Then check the back focus of your CCD camera in the manual. If you subtract this value from 26mm you get the optimum spacing for the T thread adapter you need to bring the lens into focus. T Thread spacers are widely available for experimentation from most camera shops. Try to err in favour of a shorter length than that required. rather than a longer one, as you can adjust the lens focus to compensate. (Click the detailed image tab below for more pictures).

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