Quote:
Originally Posted by Camelopardalis
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.
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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.