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Love imaging with an 8" EdgeHD

Review
Schmidt-Cassegrain Telescope (SCT) Imagers •5 replies•458 views
KuriousGeorge avatar
KuriousGeorge avatar
Great quality for the price. Stays in focus and collimation can last 2+ years depending on how much you handle it.  Color is good with little need for color correction.  Pretty sharp all the way to the edge. Portable too. With reducer, flats can last months. No real entry for dust with a sealed camera. Here's my latest…

http://www.astrobin.com/267927/?nc=user

14" may not be dramatically better unless you have very steady and dark skies (21+ mag/arcsec2).
Helpful
Joostie avatar
Joostie avatar
Full frame capable?
KuriousGeorge avatar
KuriousGeorge avatar
Full frame capable?


Not sure I understand your question. You need to match the CCD to the SCT for distortion at the very edge of the chip, or none at all.
Jeff Weiss avatar
Jeff Weiss avatar
What reducer do you use?
CS/Jeff
KuriousGeorge avatar
KuriousGeorge avatar
.7x Reducer Lens - EdgeHD 800. Model #94242.

This brings f/10 to f/7, or 2032 mm to 1422 mm.
xordi avatar
xordi avatar
Full frame capable?


Not really, I used with chip size 27x22 and the vignetting is very strong. I could not produce a perfect flat, however in the end I could fix it in PI, but with more work than usual.
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