just a footnote... of all the canon equipment that i have bought over the years, 2 no EOS 1ns a 30v 0r whatever its called a 20d ,1ds 2 and about 10 lenses this is only the second thing to ever go wrong... the other was 70-200 it went all "gritty" when trying to manually focus. my favourite camera that i owned was my pentax LX, sadly it was stolen.... but the insurance payout enabled me to go CANON. why not Nikon, only because canon had decent set of tilt and shift. HAPPY to be part of this forum. The LL has been V helpful as i went digital... still is, this time 2 years ago i hadn't even used a computer before.... have enjoyed the learning. Good luck to all