I own and love the f/4 IS but I shoot outdoors. Since you are working indoors you will really need the f/2.8.I have the 28-300 similar style and while on paper its not alot heavier than the 70-200 it felt significantly heavier particularly when at full extension because all that weight is so much further forward of the camera putting more downward force on your supporting arm. the 70-200 feels like a featherweight by comparison
My 100-400 is a few ounces lighter than the f/2.8 II and I find that if I am holding it up for a while, waiting for a bird to give me the right head angle, it does get heavy. But that's why my second white lens was the f/4.
Considering the cost of the f/2.8 II you might be happier if you rented it for a few days to form your own opinion of how it is to work with.
what lens should I buy? (don't just vote for the more expensive one)
Total Members Voted: 13
Voting closed: December 28, 2011, 01:55:54 AM