"Great lens.. Excellent sharpness and Bokeh"4.5 starson by josan737
Pros: 1.High Picture quality. 2.Built like tank, 3.Weather sealed, 4. IS..!
Cons: 1. Weight.. 2. High Price
Summary: I am 48 yrs old.. used to 70-200mm F/4 L USM and happy with the lens untill I try the F/2.8 IS. this lens is for those who is looking for the best and crisp detail/sharpness.
the big different is in small detail such as human hair, bird's feather etc.
The Image stabiliser is really help.. I can managed to get reasonable sharp pictures at 200mm at average room lightning condition which will be blurred without IS [ Aged problem...] But The price and weight is on the high side.
IF you looking for crisp detail/sharpness and nice/smooth Bokeh( blurr BG ). this lens is just right for you. But if you are looking for cheaper, lighter and don't ask for the best and crisp detail/sharpness the 70-200 F/4 will be your choice. I am keeping both..