M28/2.8 and M35/2.8 (and M35/2?) seem to be prone to sticky, slow apertures. Needs a CLA. Regards, Bob S.
On 5/11/06, Lucas Rijnders <[EMAIL PROTECTED]> wrote:
Op Thu, 11 May 2006 12:54:49 +0200 schreef Jostein <[EMAIL PROTECTED]>: > Have you checked that the aperture lever is not bent? That could be one > little > devil to make problems...:-) Hmmm, it looks parallel to the protective flange. However, there _are_ two parallel, diagonal scratches on the outside of the actuator. I'll take a good look at the lever when I have the lens apart. > Also, it could be that lubrication from the focusing thread has migrated > onto the base of the aperture blades. This doesn't necessarily show > through the glass. That's what had happened to the one I owned. It's not > very difficult to take it apart and clean it, though. IIRC, the blades > can be accessed from the back, by removing the bayonet. Thanks. From the back seems the consensus, so far. Thanks Jostein and Don! -- Regards, Lucas
