hkwongkit

Andrew,

I doubt it's the high humidity we have. Does the AF problem goes away once you move indoor in a air con'd environment? Does this happen to more than one lens you have?

I'd suggest checking the gold contacts on the body. Make sure they are clean and not oily. Clean the contacts on both the body and lens(es) using a lint free cloth with little pure alcohol on it.

Best of luck!

[ Last edited by hkwongkit at 2/08/2008 19:55 ]