A lot of single action zoom lenses (one ring for focus and zoom) exhibit this "feature". There's really nothing that can be tightened as a rule but sometimes a CLA (clean, lube, adjust) will make it better. IF you tell the tech what you require he'll use a very heavy bodied grease in the zoom mechanism that will slow down the "trombone" action of you lens. I would not recommend a zoom lens as your first lens repair project--too many small pieces. darkroommike ---------- ----- Original Message ----- From: "lea" <lea@whinydogpress.com> To: "List for Photo/Imaging Educators - Professionals - Students" <photoforum@listserver.isc.rit.edu> Sent: Monday, November 03, 2003 8:21 AM Subject: lens malfunction question > I have a 28-135 Canon IS lens. When I point it down, the barrel slides > all the way out. It doesn't fall out on the floor, it just slides out > the lenght of its extension. I'm sure this can be tightened and > corrected but I'm wondering if it's the kind of thing I might be able to > do myself. > > I rather doubt this is a feature of the IS lens line but since it's my > only IS lens, I'm wondering if this is normal. > > Thanks for any insight. > Lea > > > Lea Murphy > Whiny Dog Press www.whinydogpress.com > New images www.whinydogpress.com/new.html > Picture a Week PAW http://www.whinydogpress.com/paw.html > >
