Oops ok many thanks for reply. I wait return of my dslr from canon lab i have mount baader filter then i purchase.
Many thanks for all
I Doug sorry only to be sure before purchase you say about this because you have do this ? Or you have info about this from diffraction limited
Hi i don't know if this is the right discussion, but i have a little question and i don't see on website anithing about.
I would be interested in...
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