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Old 13-08-2011, 09:17 AM
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multiweb (Marc)
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Join Date: Oct 2007
Location: Sydney
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Quote:
Originally Posted by Gem View Post
Hi all

When comparing cameras... I assume a lower value is better? However, looking at the ATIK range, the more expensive cameras have higher values - which goes against my impression. The new Celestron CCD has 13e- read noise. Is that worse than an ATIK with 3e- or 7e- ??

Any help??
Yes a lower read noise is better. A way to combat read noise is to shoot longer subs. Read noise will only become a problem under darks skies when it becomes more prominent. I don't know about camera specs.
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