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Forum: Pentax SLR Lens Discussion 06-22-2016, 03:10 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By snimcho
Replies: 870
Views: 275,894
I just started a new thread with the data attached. It is here:
https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/324256-back...data-lens.html

Please have a look.

Thanks
Forum: Pentax SLR Lens Discussion 06-21-2016, 02:55 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By snimcho
Replies: 870
Views: 275,894
Yes, mind control sounds good :)) I'm afraid google couldn't help as that issue is quite specific. Probably someone who has played more with it could put some light here.

---------- Post added 06-22-16 at 01:04 AM ----------



Thanks for the idea. I should start a new thread related to that issue. My hope was that people who have written in that thread have seen such behavior but maybe it's not the case.
Forum: Pentax SLR Lens Discussion 06-21-2016, 07:49 AM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By snimcho
Replies: 870
Views: 275,894
Hello,

I have a question...

Before a week I prepared for my k-5iis a sdcard with files 00077681.541 and develop.mod and everything worked fine.

Then I read the eep data (LENS ROM DAT CAMERA=>SD) from two lenses: Tamron 90 macro and Sigma 300 macro.
May be 5 days later i have read the data again and surprise... the data is different! I tried second time to read and the values are as 10 minutes ago (but different than the values from before 5 days). It is not totally different but many values are changed. I have read only these two lenses so there is no mistake.
Have you seen this behavior on any lenses and do you have any idea why the values are changed?

Thanks
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