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Old 13-12-2020, 01:31 PM
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OneCosmos (Chris)
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Join Date: Apr 2010
Location: Brisbane
Posts: 559
Quote:
Originally Posted by Camelopardalis View Post
Chris, Canon employs a UV/IR cut on all their cameras from the factory. The Ra, and Da models before it, just had slightly modified LP filters that passed more in the near IR.
Thanks Dunk -makes sense and means I shouldn’t have sold my adapter abc will now have to buy another to use my lens as a telescope ��

PS given that I have thd drop-in filter for daytime use I only need something basic for Astro use so I have taken a punt with a non-Canon one: https://au.kentfaith.com/KF06.383_ca...iABEgIBGfD_BwE

Only $55. The price of the Canon one is insane given there is no glass involved.

Last edited by OneCosmos; 13-12-2020 at 03:29 PM.
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