Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
08-14-2012, 03:55 PM   #1
Senior Member
adelorenzo's Avatar

Join Date: Jan 2012
Location: Whitehorse, Yukon
Posts: 171
Focus ring jamming on 45-85 FA

I just got back from a couple of weeks in the bush (without my 645N) and my 45-85 FA seems to have developed a problem with the focus ring. It will turn smoothly but at times it will bind at a different point or between two different points. It seems to be a bit random as to where it binds. It is also making a bit of a grinding noise when I turn it. In autofocus mode it works about the same... Sometimes OK but then binds and the motor can't turn it.

I'm thinking maybe a problem with some grit getting in there? Or lack of lubrication?

If anyone has any suggestions or has popped off their focus ring before I would appreciate tips. Sending it out is an option but I would prefer to try to get it working if there is something that doesn't involve taking it all apart.

08-15-2012, 03:27 PM - 1 Like   #2
Junior Member

Join Date: Jan 2011
Location: United States
Posts: 36
I've not had this problem with my 45-85 FA, but have had it happen while in the field with a Canon wide angle zoom. I was able to slide a small piece of paper between the lens barrel and the ring and move it around enough to get a few pieces of sand out. It worked so well I never had it cleaned when I got home. I just tried that with my 45-85 FA and it's a bit tighter fit, but you still may be able to do it.
08-15-2012, 04:35 PM   #3
Senior Member
adelorenzo's Avatar

Join Date: Jan 2012
Location: Whitehorse, Yukon
Posts: 171
Original Poster
Just tried that and it seems to have made a difference. Thanks!

  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
bit, camera, fa, focus, medium format
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Focus Ring on DA 35 macro makes a clicking noise; manual focus ... this normal? eadrian75 Pentax SLR Lens Discussion 2 04-12-2011 12:51 AM
50-135mm focus ring kbryant Pentax SLR Lens Discussion 2 01-20-2011 03:39 PM
K20d shutter release jamming after factory repair starstuff Pentax DSLR Discussion 2 12-26-2010 11:02 AM
DA 40 Focus ring stuck gus007 Pentax SLR Lens Discussion 9 12-13-2010 01:13 PM
FA 28mm/2.8 focus ring nev Pentax SLR Lens Discussion 2 11-29-2010 01:45 PM

All times are GMT -7. The time now is 08:07 AM. | See also:, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]