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Bill Boehme
10th of December 2009 (Thu), 13:14
This is a shot of the south pole area of the moon on Thanksgiving mainly to try out my 7D. Conditions were not ideal because thin warm front clouds were starting to obscure and blur the moon. I shot through a few holes in the thin clouds and made this image from a mean value stack of the five best images. The "telescope" is actually my birding lens, the Canon 400mm f/5.6 with both of my extenders (1.4X and 2X) stuck on the back of the lens. This image is actually a 2X version of the final image after processing.

Cabeus A is the site of the LCROSS experiment. It is almost too dark to be seen here since it is a bit on the dark side of the terminator.

I found that the live view focusing works very well, but standing on my head and using a flimsy tripod made it a tedious process. My good tripod is out of service until I get it repaired.

http://www.pbase.com/bill_boehme/image/120170508/original.jpg
Adrena1in
11th of December 2009 (Fri), 02:51
For a shot using a 400mm lens and a couple of TCs, plus a flimsy tripod AND showing off by standing on your head...that's still damn impressive!! ;)

So that's roughly, what, 2240mm focal length? Must give that area a try with my C11 some time. I especially like Crater Clavius, up there on the left of your image, with the four small craters within it and the two on the rim.
Bill Boehme
11th of December 2009 (Fri), 10:21
For a shot using a 400mm lens and a couple of TCs, plus a flimsy tripod AND showing off by standing on your head...that's still damn impressive!! ;)

So that's roughly, what, 2240mm focal length? Must give that area a try with my C11 some time. I especially like Crater Clavius, up there on the left of your image, with the four small craters within it and the two on the rim.

Thanks for the comments, Adrena1in. Clavius is certainly a standout. I have made better images when using this lens combination on my XTi, but it was under perfect seeing conditions and the moon near the zenith and a better tripod and a dark sky location and a lot of luck. :) I would like to find out how well the 7D works under the same ideal conditions.