Quote:
Originally Posted by Miaplacidus
Pardon my ignorance, but how does the Baader UHC filter differ from the Astronomics UHC filter? (Or are they one and the same?)
Cheers,
Brian.
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This is a UHC-S which is different to the UHC. The UHC-S is a broader filter in that it lets through more light - it's designed for those who find the narrow band filters too harsh, especially on smaller scopes.
Here's a good write-up:
http://www.astrovid.com/technical_do...S%20filter.pdf
As for manufactures, they are all subtly different!