Does the tokina variations of these lenses have SDM like the 50-135? If it were me I would just use the screw drive. SDM sucks anyways. I'd be thankful pentax put in a screw drive for backwards compatibility, I imagine they will get away from SDM entirely with new lenses.
On Thu, Aug 22, 2013 at 7:42 AM, SV Hovland <[email protected]> wrote: > I have tested this on my own K-7 and DA*16-50. I wanted to find out if this > is a good solution for me and I did the test before the warranty went out. I > found it to be perfectly good. It focuses just as fast as SDM, but with more > noise of course. So I decided to not send my lens in and complain about slow > SDM after all. I could wait to complete break down and continue with the > "old" focusing instead. > > Regards > Stig Vidar Hovland > > ________________________________________ > Fra: PDML [[email protected]] på vegne av Boris Liberman > [[email protected]] > Sendt: 22. august 2013 09:09 > Til: Pentax-Discuss Mail List > Emne: Re: Giving up on Pentax (probably) > > Well, it was easier than I thought. > > Here is the link: > > http://www.pentaxforums.com/forums/pentax-slr-lens-discussion/208353-how-deactivate-sdm-silent-autofocus-allow-screw-drive-autofocus-da-16-50mm-f-2-8-a.html > > > On Thu, Aug 22, 2013 at 9:49 AM, Chris Mitchell > <[email protected]> wrote: >> Hi all >> >> The last straw has been that my DA* 16-50 has stopped auto-focussing >> again. The internal motor was replaced a couple of years ago (so out >> of warranty) and now it looks like there's another couple of hundred >> quid to be spent on it. And yes, I've cleaned all of the contacts and >> yes, my DA* 50-135 works OK on my only remaining K-7 body. >> >> So the decision's nearly made to sell off the K-7, DA* 16-50 (either >> repaired or as is), DA* 50-135, a lovely F*300 4.5 (the one with the >> tripod mount), an FA-135 2.8 (probably my favourite lens ever) and an >> FA-50 1.7. I'll put the proceeds towards a backup Fuji X body and get >> the excellent 55 - 200 zoom to cover the long end of the range and to >> sit alongside my growing collection of Fuji X primes. I'll keep a >> number of MF lenses so may still be able to appear in the PDML >> annual... >> >> Any guidance on how to price? Or if anyone's interested in making me >> any sensible offers, contact me off list and I'll get more details and >> photos arranged and we can sort out logistics. >> >> Yours sadly, Chris >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. > > > > -- > Boris > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

