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Forum: Pentax SLR Lens Discussion 04-11-2017, 01:39 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By jonhock
Replies: 870
Views: 274,931
I certainly believe you, I thought that it was probably so simple that it must have been tried before. Oh, well, nothing asked nothing gained...
Forum: Pentax SLR Lens Discussion 04-10-2017, 02:54 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By jonhock
Replies: 870
Views: 274,931
First, I don't even know if the tape would work, and secondly, if a piece of electrical tape did work I would be sure to change it whenever I used an SDM lens. I have Sigmas with HSM motors but I've never had a problem with them. As stated above, my copy of the SMC Pentax-DA* 50-135mm F2.8 ED [IF] SDM is on the way. I'll try it and see if it works.
Forum: Pentax SLR Lens Discussion 04-10-2017, 01:39 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By jonhock
Replies: 870
Views: 274,931
Why can't a person just tape over the contacts? This may have been mentioned in this thread, but I haven't read all 48 pages. It's like I have my head buried in the sand (or snow?)
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