Re: Digital reflex vs Webcam

From: Rod Mollise (rmollise_at_aol.com)
Date: 12/07/04 

Date: 07 Dec 2004 03:19:20 GMT

>Today webcams give beautiful images of brilliant objects (Moon and
>planets) beacuse of multiple exposure.
>What about using digital reflex (Canon 300d, Nikon d70 and d100) as a
>webcam for high resolution images?

Hi:

If you just want to image the planets, go the webcam route. I'm convinced
nothing will beat 'em (when combined with Registax) for planetary detail. I've
found that you really start getting the details _down_ on Jupiter, for example,
after about 300 stacked frames. You probably will not be able to take 300
frames with a DSLR in the 90 seconds or so required to prevent smearing due to
planetary rotation. Also, the small pixels of the webcams are very well suited
to high res imaging.

If you also want to shoot the deep sky, and maybe terrestrial images, get the
DSLR.

Peace,
Rod Mollise
Author of _Choosing and Using a Schmidt Cassegrain Telescope_
Like SCTs and MCTs?
Check-out sct-user, the mailing list for CAT fanciers!
Goto <http://members.aol.com/RMOLLISE/index.html>

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