Quote Originally Posted by JamesMorris View Post
AF assist works, right?

That's what I use for a 28/2.8 AI-s with the F100 (which is a great combo, fwiw).
Yes it does with the ZF2 version, it just makes it a bit trickier as you have to adjust focus, check the dot, move it a bit more to be sure, check the dot again then shoot. The focus confirm does cover a bit of a range so if you are at min focus distance and f/1.4 you have to play a bit and find the middle. Still it is usable.