Quote:
Originally Posted by prova
I have another interesting question then as I am currently able to perform 60sec exposures with zero drift, if I take 3 hours or so of 60sec exposures for example, with this still render a nice image?
I know it depends on what I'm imaging but in general?
I'd be more than keen to stack 8 hours worth of 60sec exposures if the image came up!?
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In general, you image will be less noisy but no deeper than 60 seconds. When you say no drift you also mean no drift at your focal length.
In your original post you said you wished to image galaxies. Except for a few examples most galaxies are better at longer focal lengths.
Basically if you wish to go deep, you must guide. As Monte says, guiding is cheap and easy these days.
Cheers
Paul