Forgot Password
Pentax Camera Forums Home

View Poll Results: Failures on SDM equipped lenses
My SDM failed but everything else was ok 480.00%
My SDM is fine but the lens decentered 120.00%
My SDM is fine but the lens is soft on one or more edges 120.00%
My SDM is fine but the lens is soft all over   00%
My SDM is fine but the weather/dust seals failed   00%
My SDM is fine but some other electronic malfunction occurred   00%
My SDM is fine but the zoom mechanism failed   00%
My SDM failed along with something else   00%
Multiple Choice Poll. Voters: 5. You may not vote on this poll

Show Printable Version Search this Thread
01-22-2010, 09:23 AM   #1
Veteran Member

Join Date: Jan 2009
Location: Frozen white North
Photos: Albums
Posts: 845
Type of lens failures (for SDM equipped lenses only)

Pentax tells us that failures of the SDM system are NOT more common than other types of failures.

If you have had a lens which is equipped with SDM and experienced some sort SDM or OTHER failure, please make your selection in the poll.

Now, we all have older lenses or non-SDM lenses and say we almost never have problems. Perhaps Pentax is right that SDM fails no more than other components on SDM equipped lenses.

I'm not a lens expert, so if the mods want to add or change poll answers please do so

Remember, only answer if you have an SDM equipped lens that has experienced some sort of failure. This can be a DA* lens or a DA lens with SDM.

Last edited by sebberry; 01-22-2010 at 09:31 AM.
01-22-2010, 10:46 AM   #2
Veteran Member
Lloydy's Avatar

Join Date: Aug 2007
Location: Shropshire, UK
Posts: 1,114
A new 50-135 lens was so badly off centre focused that it was unusable, but the focusing SDM drive worked.
When the camera was set to centre focus that's what it focused on, but the right of the frame was front focused and the left badly back focused.

It was exchanged for a different, and so far excellent, lens under warranty.
01-22-2010, 11:23 AM   #3
Veteran Member
PentaxPoke's Avatar

Join Date: Jan 2008
Location: Oklahoma
Posts: 1,411
Here is the summary of my DA* failures. I won't retype them here, but I have had a couple of types of failures:

  • 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!
failures, k-mount, lens, lenses, pentax, pentax lens, sdm, slr lens, sort, type of lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Are SDM Failures a Thing of the Past? Parallax Pentax SLR Lens Discussion 15 11-02-2010 12:58 AM
645D, K-m2 and NEW LENSES DA*10-16/4 SDM, DA*20/2 SDM, DA*28/2 SDM ogl Pentax News and Rumors 165 08-11-2010 03:26 AM
SDM Failures and Warranty Issues (Factory and Aftermarket) sandpipe Pentax SLR Lens Discussion 7 07-27-2010 09:58 AM
K-x/lens failures...Help!!!! LouD Troubleshooting and Beginner Help 5 05-16-2010 08:39 PM
SDM lens failures jthommo Pentax SLR Lens Discussion 84 11-06-2009 07:45 PM

All times are GMT -7. The time now is 09:30 PM. | 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]