My photo of comet McNaught taken 23rd Jan 2007, Olympus E330, 60sec, ISO400, Zuiko 50mm f/1.4 lens at F/2, hand guided piggy-backed to a motor-driven telescope, in rural region which allowed me longer exposure to better demonstrate the fantastic tail.
We were very lucky in Australia to get a view of this magnificent comet which unfortunately was not seen well in the Northern Hemisphere.
see
www.ayton.id.au/gary/Science/Astronomy/Ast_CometMcNaughtP... for more details, and other photos of this comet.