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Originally Posted by FOOTPRINT
Hi All,
As new DSLR Cameras seem to come on the market at regular intervals, with more and more pixels, (but smaller) and I believe closer together, decreasing the sensitivity in direct proportion, making the old EOS300D Camera with the largest Pixels ( 6.3 Mp at 7.4 microns in size) better ,than say the EOS450D (the latest model) with twice as many pixels (12.2 Mp) but only 5.2 microns in size, any ideas out there ??.
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The 300D in comparison to the latest models fairs up ok but as has been mentioned, amp glow is a real issue, being early generation technology.
The best performing Canon APS-C model for astro atm is the 40D which utilises a 14-bit processor.
IMO weight should not be an issue.
If the mount can't handle the slight increase in weight then it's already close to it's limit anyway.
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Also seeing CCD image sensors (some Nikon Cameras) are better than CMOS sensors-(Canon Cameras) would not the Nikon D70 having a CCD array be better than the Canon DSLRs (pixel size being equal)`for Astronomy work, of course modification of the UV/IR filters would be required, wonder has anyone out there had experience with using both types of Camera.
regards.......Jim
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I have not been overly impressed with astro images from the Nikon D70 although I do suspect that the new Nikon D300 will perform well for astro.