Originally posted by jianshi Sorry, I forgot this very important option
Especially under low light conditions.
The AF is OK. I have the Canon HF100 camcorder and its AF is not miraculous, but it is quiet.
"Under low light conditions," I just put on a AF540FGZ flash--it has a focus assist beam.
I'll buy a 70-300 SDM, when it comes out: when shooting little animals like chipmunks, they run away from the Terminator a.k.a. 55-300...nah, the AF beeping scared them away; I should've turned that darned thing off long time ago.
Actually, I wanted to buy a Sigma 600mm mirror lens, until someone swiped a good used copy from under me at a local store, before I made up my mind.