From: Marc Paradis (marc.paradis_at_antispamdomain.not)
Date: Mon Oct 27 2003 - 14:11:01 EST
Hi Jerry,
> Can anyone who has a Canon EOS300D (Digital Rebel in the U.S.) give
> me a quick few bullet points on the pros and cons of this camera.
IMHO, Canon 10d is the best camera for astro imaging. Canon 300d come
second.
For Canon 300d:
Pros: very low noise level, lighter than 10d, ram mode (12 bits),
same sensor than 10d, need much less power than other CCD camera,
supported by "DSLR Focus" and soons by ImagePlus software.
Cons: plastic case, no mirror lock up, no standard programmable
remote shutter (only mechanical shutter available), limited white
balance settings compared to Canon 10d.
I personally use and find the Canon 300d more than acceptable for DSO.
>
> It looks like it's the workhorse of many of you and seems to be
> giving fantastic results. Some of my main concerns are:
>
> - what is battery life like when it's cold out there?
I own a Canon 300d. I used only one battery during my last imaging
session at -7C
> - can you attach the body to the telescope to do prime-focus work?
Yes, you need two parts: 2" camera adapter (threaded for 48mm filter)
+ t-ring
If your scope is a Newton or a Smith-Newton, you should need a 2"
barlow to reach focus
A "IDAS LPS" or "UHC" filter is recommended
> - what's the maximum exposure time? or is there no limit?
2.5 hours. Practical limit is more 10 minutes
> - is it worth buying the 15-55mm lens or should I just go for the
> body and get other EF lenses?
For only 100$ more, I find it useful even if quality of lens seems to
be average.
Hope this helps.
Marc
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