Thread: Filter sizes to suit ASI 183MM Pro
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Old 10-08-2020, 08:42 PM
CarlJoseph (Carl)
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CarlJoseph is offline 		 
Join Date: Dec 2009
Location: Dandenong Ranges
Posts: 265
Thanks for that.

What's the relationship between the filter size and f-ratio? I'm also going to be getting a RedCat51 (f/4.9) so want to ensure 1.25" are suitable for that too.

Thanks again
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