Re: What is the best Digital Camera for Astrophotography?


"Surfer!" <surfer@xxxxxxxxx> wrote in message
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In message <6pm1h1F8rhchU1@xxxxxxxxxxxxxxxxxx>, OG
<owen@xxxxxxxxxxxxxxxxxxx> writes

"toveysnake" <collintovey@xxxxxxxxx> wrote in message
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I am looking for a digital Camera under $400 that is good for taking
very long exposure shots of the night sky. I just can't find a digital
camera with these slow shutter speeds(possibly up to an hour or more).

Most astrophotographers now take multiple shorter exposures and 'stack'
them
to get the benefit of long exposure times without suffering from the
increased noise that would be experienced with a long single exposure.

And the one that gave a talk at our club uses a webcam mounted on his
telescope, not a conventional digital camera.


Software is available for auto stacking the multiple images.


And the results the chap got from his telescope, webcam and the software
were astonishing.


Yes, that is also an option. As I understand it, in general the webcams need
a hack so that the basic exposure time is increased from 1/25 per 'frame' to
something more suited for astrophotography. Details can be found at the
QuickCam and Unconventional Imaging Astronomy Group website at
http://www.qcuiag.org.uk/



.

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