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Old 03-10-2008, 11:01 AM
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JohnH
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127 Ed Moon shot

David's Earthshine shot reminded me to post this test shot from a few days back. This was taken with the 145M camera at prime on the 127 ED with an exposure time of .01s! A stack of 20 shots (none rejected) with AA4.
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Old 03-10-2008, 11:23 AM
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h0ughy (David)
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did you crop that image - huge scale compared with mine? Whats the 145M camera?
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Old 03-10-2008, 12:02 PM
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No cropping David, the chip in the 145M is 1/3" and is 1360*1024 pixels as opposed to the APC sensor in the Canons. I actaully have a 0.8x FR in line as well to compensate for the small sensor. If I don't do that I would image at about 1.3" per pixel. Not much point in that with seeing at 2.5 to 3" on a good day. The 145 is a cooled mono CCD camera, this one:

http://www.opticstar.com/Run/Astrono...=0_10_0_50_210

PS This image was taken through an Astronomic R filter.
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Old 03-10-2008, 12:09 PM
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Lovely image John, extremely sharp and crisp.

Very well done.
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