As a preemptory note, let me say that I have successfully tested other lenses on my 1N now, and can definitely state that the failing variable is the 28-105 USM lens and not the body. Thanks again, CCC -----Original Message----- From: C. C. Casparian [SMTP:[EMAIL PROTECTED]] Sent: Thursday, August 30, 2001 10:51 PM To: '[EMAIL PROTECTED]' Subject: losing focus in USM Hello, I had a problem emerge today, right before my eyes. Here's the situation: I have an EOS 1N and was using the prosumer 28-105 USM lens. The camera-lens unit was subjected to a shock, per my usual rough conditions (hence the 1N, instead of something lighter-weight) and now the lens doesn't seem to focus at all. When I try to focus, the active focus point illuminates, as it should, but the elements don't make a move and the motor is completely silent. Not in the "USM" way of silent, but in the sense of nothing going on at all, i.e., dead. Even when the lens is switched to "M", manually turning the focusing ring yields no result; apparently the gears that normally connect the focus ring to the elements are no longer engaged. If you've ever had/seen this problem, I'd love to know what to do about it. I've heard that any time a tech. needs to go inside a lens, you might as well chuck it and get a new one, w/ warranty (mine's long out). Your help is greatly appreciated. Regards, Casper * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
