Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
10-21-2009, 02:17 PM   #1
Senior Member
jslifoaw's Avatar

Join Date: Apr 2007
Location: Toronto/Victoria
Posts: 262
A couple of SDM questions

I haven't yet bought an SDM lens but the 16-50 is sort of grabbing my attention. However, I was hoping some folks here could clear up a couple of things related to the infamous motor failure:

1) For those with a failed motor, what happens if you mount it on a screwdrive-only body; does it af? I would only be using it with screwdrive for now since I have an istD and K100D.

2) I think I asked this before, but what happens if you block the SDM contacts on an SDM body? Does it just not focus at all with SDM lenses?

I'm personally a fan of screwdrive; the DA14 and DFA macros have an excellent implementation that is only a bit noisy but has nice manual focusing plus the ring doesn't turn in AF.


  • 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!
af, body, couple, k-mount, motor, pentax lens, screwdrive, sdm, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Couple of questions jbander Pentax Medium Format 5 10-26-2010 06:28 AM
New K-x, couple of questions. Paleo Pete Troubleshooting and Beginner Help 15 06-09-2010 10:05 PM
SDM questions Waheed_Sadaf Pentax SLR Lens Discussion 17 11-23-2009 04:53 PM
couple of K-X questions isusdfr Pentax DSLR Discussion 5 10-29-2009 05:55 AM
Couple of *ist D questions eccs19 Pentax DSLR Discussion 6 08-05-2008 08:10 AM

All times are GMT -7. The time now is 08:40 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]