From: <[EMAIL PROTECTED]> > > hi Darrell, > does your Sigma 180/3.5 Macro have focusing problems? i heard > its AF AND MF will stop working after the lens is exposed to > direct sun light for more than 30 min. also heard Sigma has > admitted this yet i don't know if they have fixed it... > i've been looking at this lens too, your experience is greatly > appreciated!
I have not experienced this. I have shot in some pretty warm butterfly houses (here in Houston and in St. Louis) and there was lots of sun. However, I assume the problem occurs when the lens gets hot, and I have not been in a situation where my lens got really warm or hot. I may test it. So for the lens has been great. The only problem I had with AF/MF was when I first mounted the new lens. I would not manual focus. After a couple of time auto focusing, it would then MF. I have also read that some have had some incompatibility problems with the EOS 3 and the Sigma 180, but that has not been my experience. Darrell D. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
