DPReview.com is closing April 10th - Find out more

Pentax smc DA* 50-135mm SDM Issue

Started Dec 21, 2013 | Discussions thread
c57d Regular Member • Posts: 102
Re: Pentax smc DA* 50-135mm SDM Issue

Do a Google search on: "How to deactivate SDM and allow for screw drive autofocus"

The first hit should be on the Pentax Forums page.

It tells how to use an older camera to read the lens firmware, make a change and write it back to the lens so that it always uses screw drive. I did it to my 50-135 and now I have a working lens again without having to send it in for a repair that may fail again down the road.

-- hide signature --

Chris

 c57d's gear list:c57d's gear list
Samyang 8mm F3.5 Aspherical IF MC Fisheye
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow