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Choosing CCD
Hi,
I'm an visual observer with some experience. But now, I'm planning to start CCD astronomy. I've two telescopes: · My portable telescope is a Vixen Newton of 8" and 800mm focal lenght (f4) over a Losmandy GM8 mount. · My fixed telescope is a Meade LX200 of 14" and 3556mm focal lenght (f10) over a Losmandy Titan mount with Gemini. I've to choose between a SBIG-ST7 and a SBIG-ST8 (with autoguiding) cameras. I want to use it in all my telescopes, assuming I need a focal reducer for LX200. Mainly, I use for photometry, astrometry, comet imaging and asteroid occultations of stars. Which is the best camera for my preferences? I need experienced users advices. Advanced thanks for your help. Solstici |
#2
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Choosing CCD
On Wed, 9 Sep 2009 12:10:48 -0700 (PDT), solstici
wrote: I've to choose between a SBIG-ST7 and a SBIG-ST8 (with autoguiding) cameras. I want to use it in all my telescopes, assuming I need a focal reducer for LX200. Mainly, I use for photometry, astrometry, comet imaging and asteroid occultations of stars. Which is the best camera for my preferences? The two cameras have essentially identical specifications, except for the physical chip size. So it all comes down to looking at the focal lengths you will be using each scope at, and the resulting FOVs. If the targets you are interested in fit on an ST7, then that is certainly your more economical choice. If not, you'll want to consider the ST8 instead. For any of these applications, the ST10 is a somewhat better choice. However, it comes with a larger price tag, as well. _________________________________________________ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com |
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