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General focusing question


Guest David Pugh
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Guest David Pugh

When focusing using a particular setup i.e. ep, barlows, ccd etc. Are you adjusting the focus to match the setup and then everything you look at will be in focus? i.e. planets, nebulas etc.

or do you need to adjust the focus for every subject?

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Yeah, make yourself a Bahtinov. Focus on a nice bright star and then unless you change EP, barlow, etc everything else should also be in focus. If you do change EP you may need to refocus, or use parfocal optics, or get some parfocal rings.

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