For sale here is a Canon 70-200mm f2.8L USM non-IS lens that is in mint condition apart from some very light scuff marks on the lens hood from a dew heater. This particular lens delivers excellent performance wide open and shows excellent optical centering.
The lens was purchased new from photocontinental in February 2007 and was used to discover Comet C/2007 E2 in March 2007. It was used mostly for comet searching between 2007 and 2009, but since I moved to an 8" telescope and cooled CCD camera it has seen almost no use.
$1000 + shipping (Pickup OK). Feel free to PM me, or email me at terry dot lovejoy at bigpond dot com .
Attached also is a single 75 second exposure of Crux taken with this lens at 135mm f2.8 - converted straight from raw, no other processing.
Terry
Last edited by CometGuy; 13-08-2012 at 11:17 PM.
Reason: Upload sample astro image