I've had a 7D for 1 1/2 years now and it's worked great. I am wondering if there are any advantages to upgrading the firmware or does the old adage, "if it ain't broke, don't fix it" hold true here?
I just got my 100 - 400L so I am still getting used to it. Honestly I thought this would never be my "walk-around" lens but after using it a few times, I love it and I belive I can produce better images with it than my old kit Canon 55 - 250mm which ...
