Not sure if it's the same problem but my 60-250/4 is in France for service right now. ETA next Friday. AF it wasn't dead, just refusing to focus to infinity. On the K-3ii it flat out refused. On the K-5 it made a couple of tries and eventually got there after 4-5 seconds.
Jostein

Den 15.09.2017 16:33, skrev Rick Womer:
The SDM motor is failing on my 4-month old DA 17-70 lens.

One would think that in NINE years of production Pentax would have
corrected the well-known SDM motor problem.

Oy.

Rick

P.S. How long is Precision taking to fix things these days?


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