I just had a similar problem with my K-500/4,5. It was unable to focus at infinity. Maybe a bit soft at other focus distances too, but infinity was the main problem.
I fiddled with it, and discovered that the front part of the lens had unscrewed itself, moving the front element forward. It was the outer tube that was loose. I tightened it, and now everything seems to work properly again. In fact it seems sharper than ever :-) -- MaritimTim 2009/6/3 <[email protected]>: > Just what the subject says. I was out walking with a relatively full > kit and I spied what I thought was a Cormorant, but turned out to be > what looked like a diving duck of some kind. I mounted the the F 1.7x > adapter and the A*300, and couldn't achieve focus. > > I thought it was the adapter, but after much fooling around, I was able > to confirm that the A* 300 can no longer focus to infinity. > Even when racked in to it's further focusing distance. The focusing > scale says it's focused at or beyond infinity but the focus point seems > to be about 200/300 yards/meters away. > > I've used this lens to good effect for the last few years. So this > problem seems to be a very recent development. > > Physically the lens seems to be rock solid. The helical moves from > minimum focus to infinity as smoothly as ever, shake it nothing rattles > yet there is something obviously wrong with the lens. > > So does anyone know of a good lens repair place in the US, it's a cinch > that Pentax won't repair it, and the only good camera repair place I > personally had experience with has long since dried up and blown away. > (It would also help if they didn't charge an arm and a leg for repairs > since my budge is down to one or the other). > > -- > > The free man owns himself. He can damage himself with either eating or > drinking; he can ruin himself with gambling. If he does he is certainly a > damn fool, and he might possibly be a damned soul; but if he may not, he is > not a free man any more than a dog. > > --G. K. Chesterton -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
