I really wanted the 2.8 version but it was $1000 more! Wish I got that one though cause I want to use a 2x tele converter. can not be used on this lens .This lens is very nice and good pics!

I enjoy this lens but you should know it is very, very heavy. I bought a device so that I could carry my camera and lends on my belt because of the weight.

Light weight. Tack sharp. Fast and sticky auto focus. Very good for a birds in flight photographer.

Looks like a tank and appears as an competitor alternative. Lens is not pro grade and can't be used as I used my competitors white lens. Focus not working after a impact within the camera bag. Inside it is a plastic lens, cheaply made. A big surprise to me. I googled and many 70-200 f4 and f2.8 users have the same experience. It's a pity that a small steel ring gets bended and fail the focus.... Read More  Hide