Anton Browne e-mailed me off list with what seems like a very good suggestion:
I had that problem once on a Pentax lens - the lens was tatty but optically fine and I'd got it cheap, it was a common lens so I wasn't too bothered. I set the lens to close focus so it was extended and carefully lubricated the mechanism that can be seen inside that operates the diaphragm (I did this with watch oil or WD40 can't remember which on a wooden toothpick so I could be very accurate and apply tiny amounts). Hey presto lens fixed. _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
