[toni-a]

For the 70-200f4 all depends where you are shooting, in Qatar where I currently live for instance it's useless, I practically never used of even missed my 70-300...
However in Lebanon with mountains and canyons, it was a totally different story, and it was a must have.

[Klaus]

I'm drooling around with the idea of going for the Batis 135mm f/2.8 APO - small, lightweight, fast enough, excessively sharp ...