I have the Mk II lens, and it does the same thing. It's not supposed to make that noise or have that feel in manual focus mode, though--it's the same feeling as when you try to turn the focus ring when it's in AF mode. I find that I have to flip the AF-MF switch back and forth several times to get it to correctly engage MF mode; then, it's perfectly smooth (and quiet). Sometimes, I have to AF the lens on something before it works in manual focus mode, almost like some gears need to be realigned.
I don't know if this damages the lens, but I'm sure it can't be good... --Alex ----- Original Message ----- From: "John M. Lovda" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Sunday, November 25, 2001 7:33 PM Subject: EOS EF 50mm f1.8 Mk I Focusing Noise > I know that the arc-form drive motors are supposed to be noisier than USM > but I'm wondering if a lens I recently acquired is "defective". > > When put in the Manual mode, the focus ring sounds and feels like > something is rubbing against a fine pitch sawtooth. Is something out of > alignment that would feel like two gears that are just making contact? > Is this normal for this lens? It seems to work fine in the Autofocus > mode but I don't know how much noise is normal. > > Thanks, > John Lovda * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
