Pentax SDM Firmware
Dear Pentax, with all due respect with thousands of Pentax users, we have been very disappointed with your DA* lenses containing SDM auto focusing motor for a long time.Thousands of Pentax users from... continue reading »
"My DA*16-50mm failed fairly quickly"
"DA 17-70 not reliable on autofocus despite sent to Japan for service twice under warranty."
"Past owner DA* 50-135mm f/2.8"
"I won't be buying an SDM lens until the fault is fixed."
"I support this petition"
"I fear everyday that my 50-135mm will fail without notice. It has shown symptoms of failure with focus hunting."
"I support this petition"
"I support this petition"
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"have had motor problems with both da*16-50 and brand new da*200"
"I support this petition"
"I support this petition"
"I support this petition"
"50-135 failed. Hardly used. Just over $500Aus. to repair. No more pentax lenses of any sort until issue resolved."
"I support this petition"
"I got 2 sdm, 16-50+50-135, both still ok, hope to see much more better AF system on body, better design than SAFOX, super fast focusing and precision focusing points, something like Active Variable Eye Focusing Point. Maintained the best high ISO in the m"
"I support this petition"
"Sa ii fut!"
"I wanted to buy the 50-135mm but bought the Sigma 70-200 instead."
"I will not purchase an SDM lens until Pentax addresses community concerns."
"I support this petition"
"Currently own a DA* 200mm and DA* 50-135mm"
"I support this petition"
