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Using MPEG from Digital Camera

Started by mielejr, 12/25/2002 11:42PM
Posted 12/25/2002 11:42PM Opening Post
My Digital camera (a Sony Cybershot DSC-S85) can take MPEG movies that are about 30 seconds long. Does anyone know if such movies could be used to do planetary imaging? I know it's done with video cameras but I was not sure the MPEG file format is useful. Can individual frames be grabbed from the MPEG movie and then stacked? Anyone know what software will grab the frames? I assume astrostack will do the stacking. Thanks very much for any advice and clear skies to all!

John
Posted 12/26/2002 10:08AM #1
MPEG is a "predictive" format - each frame is incomplete, only the changes between frames are stored. This makes it harder to get clean single-frame images.

But I would think that you might run into problems before that - most of the digital camera with movie capability use a lower resolution for the move images, and higher compression is also typical. Both of these get in the way of getting high-quality planetary images.

Ron Wodaski

Ron Wodaski
New Astronomy Press
http://www.newastro.com