> > I have a few years old 100-400mm 4.5-5.6 L IS. S/N 212XXX. > I use it every week and it has served me quite well for the past 3 years. > Now the auto-focus seems to be searching a bit. Not coarsely, It > looks fine > throught the finder but just enough to lose the sharp images I > was used to. > When I try to go to manual focus the ring is exceedingly stiff. If I shut > the camera off, remove the lens and excercise the adjusting ring, > it usually > loosens up after a few brisk turns and some coarse language. > The IS always works great, except when I forget to turn it on... > The lens has never been dropped or damaged. It's very clean and > well cared > for.
Also had this happen to my EF100-400 two years ago, Canon Canada fixed free of charge, didn't note what the problem was on the repair sheet. Ken * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
