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Digital SLR vs. dedicated Astro CCD Camera
Hello all,
I am thinking about getting into astro imaging, and am wondering something... The local club I belong to has an AISIG (Astro Imaging Special Interest Group). The majority of the club members that I have questioned about about getting started in imaging use Digital SLRs, mostly acquired in the last year or two. (In fact, only one member I have approached has an ST-7, and that is a few years old). These one-shot colour DSLRs are pretty popular, and are obviously taking a *lot* of business away from dedicated astro camera manufacturers such as SBIG and Starlight-Xpress. The dedicated astro cameras are *seemingly* much more expensive per newbie useful chip unit area, even taking into account the greater sensitivity of the dedicated CCD cameras, cooling capabilities, etc. Why should a newbie such as myself pay $6000 for a dedicated 6-MegaPixel astro CCD, or $1300 for a low-end 0.4-MegaPixel astro CCD, when $1400 can buy a less sensitive, less specific, but perfectly adequate large-format dual-purpose CMOS camera such as Hutech- converted Digital Rebel? Gregory |
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