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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Shelyak Acquisition Camera Ring Set: 13mm Backfocus

Shelyak Acquisition Camera Ring Set: 13mm Backfocus

par Shelyak
UGC SHK-SE0110
$117.00 - $117.00
$117.00
$117.00 - $117.00
$117.00
Égalisation de prix!
  • 13mm Nominal Backfocus
  • Accommodates Cameras with 9.15mm to 13.15mm Backfocus
  • Compatible with Shelyak Lhires III Spectroscopes
  • Compatible with Shelyak LISA Spectroscopes
  • Official Standard-Issue Replacement Part
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  • Description
  • FAQ
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  • Warranty

  • Acquisition Camera Ring Set: 13mm Backfocus

    This acquisition camera ring set is the standard-issue adapter for Shelyak Lhires III and LISA spectroscopes, designed to position a camera sensor at the precise backfocus distance between 9.15mm and 13.15mm. It is the official factory component for mounting a guide or acquisition camera, ensuring the sensor sits exactly at the focal plane of the spectroscope's reflective slit.

    Standard-Issue Adapter for 9.15mm to 13.15mm Backfocus

    Achieving the correct camera spacing is critical for accurate guiding during long spectroscopic exposures. This ring set is the original part supplied with new Lhires III and LISA instruments, built specifically to accommodate the common backfocus range of guide cameras from 9.15mm to 13.15mm. Whether you have misplaced the original adapter or need a spare, this component restores your instrument to its factory-specified configuration for reliable performance.

  • What is the purpose of the Shelyak 13mm Acquisition Camera Ring Set?

    This ring set is an adapter designed to mount an acquisition or guide camera onto a Shelyak Lhires III or LISA spectroscope. Its primary function is to set the camera sensor at the correct backfocus distance, which must be between 9.15mm and 13.15mm, for accurate guiding on the instrument's reflective slit.

    Which spectroscopes is this 13mm ring set compatible with?

    This adapter is specifically designed for and supplied as standard with the Shelyak Lhires III and Shelyak LISA series of spectroscopes. It is not intended for other models or brands.

    My acquisition camera has a backfocus of 12.5mm. Will this adapter work with my Lhires III?

    Yes. This adapter is designed for any camera with a backfocus between 9.15mm and 13.15mm. Since 12.5mm falls within this range, this is the correct adapter for connecting your camera to a Lhires III or LISA spectroscope.

    I lost the original camera adapter for my Lhires III spectroscope. Is this the correct replacement part?

    Yes, this is the official, standard-issue adapter that is supplied with new Lhires III and LISA instruments. If your original part is missing or damaged, this is the correct factory replacement.

    Why is the 9.15mm to 13.15mm backfocus critical for a Lhires III or LISA spectroscope?

    This specific distance ensures that your guide camera's sensor is perfectly parfocal with the spectroscope's reflective entrance slit. If the spacing is incorrect, the star used for guiding will be out of focus, leading to poor tracking accuracy and trailed stellar spectra during your science exposure.

    Can I use this ring set to mount my main science camera to the spectroscope?

    No, this adapter is intended only for the acquisition and guiding camera port. The main science camera attaches to a different port on the spectroscope, which typically requires a different adapter and backfocus calculation.

  • Shelyak 1-Year Warranty