70-200 f4 tested on Photozone

PatrickP wrote:

My own rough conclusion : the f/4 version might be better for distant landscape, but the VR2 is not exactly that far behind. you lose a stop of aperture. and when the TC-14 is mounted, the difference between 280mm f/4 and 280mm f/5.6 is huge (AF speed, DOF isolation, etc). If one already own the VR2 and actually likes it, the $1400 asking price of the f/4 seems to be a hefty price to pay for a lighter lens for travel. It's a very bitter pill to swallow.