Quote:
Originally Posted by dugnsuz
Shouldn't need to refocus that often in a session - but best to check the subs every so often if there's a significant drop in temperature over the imaging run.
Consensus is that hairdryers are not the best option as you might be blowing dust onto the lens surface at speed and heated!!!
That said, I've never done any damage to my lenses with the hairdryer method - but got dew straps now just in case.
Do you have a link to the Barnard's Loop pic you mentioned?
Doug
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Thanks Doug. I'll keep all this in mind when I get set-up
properly in the future.
No I don't have a link. Ross hasn't posted any. We're both just playing with this idea of doing super widefield Ha stuff lately.
Quote:
Originally Posted by Octane
Once you've reached focus, might be an idea to use some good masking tape to lock the lens in place.
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Good thinking. I'll stick a small strip of electrical tape across.