thanks! that's encouraging !
Come on up to Wyoming in the spring. We'll go through Yellowstone Nat'l Park, you can mount the 300/2.8L-IS and rip off 10gigs or so... see what you think. I guarantee you'll love the results.
cool -- that's only about a 5 hour trip
I have a Sigma EX 300 2.8 I got in the mail a few days ago I'm trying out -- weather has been pretty crappy to put it through the paces though......
I can't say I've tried the Sigma, but have heard good reviews. Let us know what you think. If the images are anything short of spectacular, the Canon might be the way to go. I think Canon's 300/2.8L-IS is the best lens they make for it's intended purpose.
