Dead AF on DFA* 1.4

Started Jan 4, 2019 | Discussions thread
Alex Sarbu Forum Pro • Posts: 11,749
Re: Dead AF on DFA* 1.4

Labe wrote:

Sounds like SDM failure. Both my 16-50 and 50-135 did the same.

I disagree - the SDM failure is characterized by the lens not being able to focus, but otherwise working fine. The AF motor itself is vastly different from these micromotors - it's a ring type motor.

The SR select focal length screen, the lens appearing as MF points toward lens-camera communication issues.

Just send it for repair when you get back.


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Ricoh GR III Pentax K-5 IIs Pentax K-1 II Pentax smc DA 21mm F3.2 AL Limited Pentax smc DA 70mm F2.4 AL Limited +8 more
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