Would someone be kind enough to have a look and tell me if this allsky image is focused correctly?
is it sharp enough?
Zwo 178mc
Is this in focus?
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Re: Is this in focus?
Hi,
all sky cameras can be tricky to focus - if you are using a glass/plastic dome then the curvature means that it introduces some errors to the focus, so the image can look sharply in focus with the dome off and then be a bit blurry with the dome on. It may not be a case of 'is this in focus'?, but more 'is this the best focus I can achieve'?
cheers,
Robin
all sky cameras can be tricky to focus - if you are using a glass/plastic dome then the curvature means that it introduces some errors to the focus, so the image can look sharply in focus with the dome off and then be a bit blurry with the dome on. It may not be a case of 'is this in focus'?, but more 'is this the best focus I can achieve'?
cheers,
Robin
Re: Is this in focus?
thanks @robin
I have been trying to adjust focus with the dome off, however, as soon as it looks correct and I re-tighten the lens screw, the next capture looks "out". and that's BEFORE i reapply the dome!
i heard there was a trick to adjust focus more precisely, by first adjusting the actual lens collar from the camera, taping it down and then applying fine adjustment to the lens itself.
is there a quick and easy guide to how to do this?
thanks
I have been trying to adjust focus with the dome off, however, as soon as it looks correct and I re-tighten the lens screw, the next capture looks "out". and that's BEFORE i reapply the dome!
i heard there was a trick to adjust focus more precisely, by first adjusting the actual lens collar from the camera, taping it down and then applying fine adjustment to the lens itself.
is there a quick and easy guide to how to do this?
thanks
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- Posts: 13473
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Re: Is this in focus?
Hi,
I don't have any tricks to share - I did mine by length trial and error Maybe other all sky users have some suggestions.
cheers,
Robin
I don't have any tricks to share - I did mine by length trial and error Maybe other all sky users have some suggestions.
cheers,
Robin