Thread: Filter sizes to suit ASI 183MM Pro
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Old 10-08-2020, 08:52 PM
CarlJoseph (Carl)
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CarlJoseph is offline 		 
Join Date: Dec 2009
Location: Dandenong Ranges
Posts: 265
Nevermind, I found the formula ...

Minimum Filter Size = CCDdiag*(FL-ChipDistance)/FL + (ChipDistance/f)

So in both of my set-ups, around 17.2mm is the smallest filter size. Looks like I can safely go the cheaper size then
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