Thanks Mike and I agree with you re the refocusing etc.
Quote:
Originally Posted by DavidTrap
Very nice Allan.
What filters are you using? FocusMax finds a difference between my parfocal astrodon filters. They're close, but still a few clicks between them. Mike told me his Astronomic filters have slight differences, even behind an AP scope which you'd hope would have the closest focusing point across the spectrum of any scope.
DT
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David, don't have the luxury of computer controlled focus, just a Bahtinov mask and a touch of the lazies. You may be right about the blue.
Quote:
Originally Posted by DavidU
Lovely Al, nice detail.
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Thanks Dave
Quote:
Originally Posted by strongmanmike
Yes but the focus difference was between colours, I found on occassions I felt needed to tweek the blue focus..? Not sure if this was the filter or the colour correction of the APO lens, I always suspected the later 
Nice shot Alan, I would love some time back in my dome too 
Mike |