Here's the best of my images of Comet Lovejoy, taken on the 27th December. The comet's tail was about 30 degrees in length, and was a stunning sight visually! This is a single 30 sec exposure with my 50D and EF35 f/2 lens at f/2.2, using 1600 iso. Processed in Lightroom and GIMP.
Thanks for looking!