Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
03-18-2008, 03:50 PM   #1
Site Supporter

Join Date: Aug 2007
Location: St. Louis, MO
Photos: Gallery
Posts: 394
Pentax-A 50mm F1.7 Troubles

I just bought a Pentax A 50mm F1.7 used, which came in today. When I turn the aperture ring, it will turn from 1.7 to a bit past 8, but then will not turn any further.

Thoughts as to the cause? Anything I can do other than try to return it for my money?

03-18-2008, 06:05 PM   #2
Senior Member

Join Date: May 2007
Location: Philadelphia, PA
Posts: 167
That is most likely due to a common problem with this lens. There are two metal clips in the lens which come loose after a while. They normally lock the aperture ring in the A position, or prevent you from going to A without pushing the knob. It is easy to fix by just removing the loose clip since you do not really need this function. You will have to remove the mount, than you can pull back the aperture ring and than should be able to remove the clip. Be really careful when doing this there is a spring loaded ball which will fly off. Best do it in a plastic bag. It is also a bit tricky to press the ball on the spring and than slide the ring over it when reassembling.

Generally I would leave negative feedback (if this was ebay) since it is quite sure that the seller knew about the fault.
03-18-2008, 06:11 PM   #3
Veteran Member

Join Date: Dec 2006
Location: Outside of Philly
Posts: 1,564
Or contact the eBay seller and ask to return the lens. Maybe they didn't know? You always should contact your seller before leaving negative feedback!
03-18-2008, 06:17 PM   #4
Site Supporter

Join Date: Aug 2007
Location: St. Louis, MO
Photos: Gallery
Posts: 394
Original Poster
I have already emailed the seller. We will see what he says to say....

Thanks for the feedback!


  • 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!
50mm, f1.7, k-mount, pentax lens, pentax-a 50mm f1.7, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Metering troubles with K7 fourmiX Pentax DSLR Discussion 15 12-10-2012 02:09 AM
New DSLR K-x troubles MelAllsop Pentax DSLR Discussion 7 12-17-2009 12:47 PM
Troubles but cool... metroeloise Post Your Photos! 5 08-23-2009 12:51 PM
50-135mm troubles or is it me? branphlake Pentax SLR Lens Discussion 4 08-17-2009 10:30 PM
Evilbay troubles Pwn4g3_P13 General Talk 26 08-17-2009 03:53 PM

All times are GMT -7. The time now is 10:11 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]