View Full Version here: : 127 Ed Moon shot
JohnH
03-10-2008, 11:01 AM
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.
h0ughy
03-10-2008, 11:23 AM
did you crop that image - huge scale compared with mine? Whats the 145M camera?
JohnH
03-10-2008, 12:02 PM
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/Astronomy/Astro.asp?s=d2edef9a-fa11-4a35-8f5c-596cf8dc1979&p=0_10_0_50_210
PS This image was taken through an Astronomic R filter.
Matty P
03-10-2008, 12:09 PM
Lovely image John, extremely sharp and crisp.
Very well done. :thumbsup:
vBulletin® v3.8.7, Copyright ©2000-2025, vBulletin Solutions, Inc.