Here's some shots I took of Comet Holmes tonight from Clairemont. I have a telescope I take pics with, but it's too hard to set up with a broken ankle. So these were just camera on tripod:

With the Canon 50mm f/1.8:


With the Canon 75-300mm @ 300mm:

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Digital Rebel XT, Sigma 10-20mm, Sigma 24-60mm, 50mm f/1.8, 75-300 IS USM
Sigma Flash, Kenko Tubes
Flickr