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astro: m3
First light, new camera...
Guess I can't complain about the moon at least the sky was clear enough to try out the QHY8, http://www.qhyccd.com/QHY8.html It is pretty nice, well made, good price. The mk69 needs collimating and I worked on the mount after this imaging session so next time out it should track better. 10x300 seconds Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Vixen Sphinx SXD Mount QHY8 full res cropped version here, http://www.tisd.net/~jng3/observatory/m3_full.jpg -- John N. Gretchen III N5JNG NCS304 http://www.tisd.net/~jng3 |
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astro: m3
John N. Gretchen III wrote: First light, new camera... Guess I can't complain about the moon at least the sky was clear enough to try out the QHY8, http://www.qhyccd.com/QHY8.html It is pretty nice, well made, good price. The mk69 needs collimating and I worked on the mount after this imaging session so next time out it should track better. 10x300 seconds Intes MK-69 (6" f/6 Mak-Cass 900mm fl) Vixen Sphinx SXD Mount QHY8 full res cropped version here, http://www.tisd.net/~jng3/observatory/m3_full.jpg That's an interesting new camera. I've seen some good stuff taken with it on other forums. Did you get the CCD-Labs version or the Starzonia version. Seems to be a big debate on which is better that boils down to very little difference that I can see. CCD-Labs uses argon and Starzonia uses dry nitrogen to fill the CCD chamber to prevent frost. I see no difference in the images though argon has better thermal properties if I recall my chemistry days correctly. Don't think the difference material however. I guess I'd like to see thermal control rather than just running at -45C below ambient or whatever it achieves. Though its dark current is extremely low so that doesn't appear a big issue. Most don't even use darks, just hot pixel removal. So after one image how do you like it? Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
#3
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astro: m3
The full moon makes it hard to give a full assessment. This one came
from Starzonia. I have assured by the owner of the company that makes it that the frosting problem has been fixed. Rick Johnson wrote: That's an interesting new camera. I've seen some good stuff taken with it on other forums. Did you get the CCD-Labs version or the Starzonia version. Seems to be a big debate on which is better that boils down to very little difference that I can see. CCD-Labs uses argon and Starzonia uses dry nitrogen to fill the CCD chamber to prevent frost. I see no difference in the images though argon has better thermal properties if I recall my chemistry days correctly. Don't think the difference material however. I guess I'd like to see thermal control rather than just running at -45C below ambient or whatever it achieves. Though its dark current is extremely low so that doesn't appear a big issue. Most don't even use darks, just hot pixel removal. So after one image how do you like it? Rick -- John N. Gretchen III N5JNG NCS304 http://www.tisd.net/~jng3 |
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