Frank Maybe this does not help much but you never know... I had a very similar problem with the K85/1.8 that I bought last June, except that the sticking point was the half-stop between 1.8 and 2.8. Worked perfectly on the camera. The lens was under warranty so I returned it for repair, which was carried out satisfactorily in August. The lens has worked properly since.
There's no way I would have stripped the lens down myself as I'm just not that brave, but from what I could gather from the shop it was not a difficult job. Regards Jim Brooks > > Date: Wed, 13 Mar 2002 04:28:37 -0800 (PST) > From: Frank Wajer <[EMAIL PROTECTED]> > Subject: K85mm f.18 diaphragm problem > > Hi all, > > there is something strange with the diaphragm on > my K85mm f1.8. When the lens is on the camera > everything is ok. I can turn the diaphragm open and > closed no problem. When I take the lens off the camera > I can only turn the diaphragm from f22 to f4, then it > locks. When I press the diaphragm actuator (as is > when the lens is on the camera) I can turn the > diaphragm from f22 - f1.8 no problem. With my other > lenses when I turn the diaphragm I see the actuator > moving, but not with the 85mm, arrghh. Anyone know > what's wrong? It is not a very big deal I think since > the lens works fine on camera. > > cya > > Frank - 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 .

