Meade color filters- are they parfocal?
Hi,
I have a couple of questions for you color imagers I hope you can help me
with. I just purchased the Meade #07529 wratten color filter set #2. My
question is- are these four filters parfocal with one another? Next
question, if they are, is there a clear filter I can obtain that is parfocal
with this set?
Thank you,
JJ
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