Aussie SDM repair

Started Feb 5, 2015 | Discussions thread
Cideway Veteran Member • Posts: 5,707
Re: How Ironic ??

Ishpuini wrote:

It wasn't an easy decision, but I finally decided to hack both lenses' firmware and disable SDM AF. Both have now been returned to screw drive AF only (as initially on my K10D many many years ago) and AF hasn't failed me one single time.

Hope you won't have to resort to that ultimate solution...

I did the firmware hack on my 16-50, it turns out in my experience that the SDM focus issue is not the SDM motor, but the entire AF system within the lens as my 16-50 is starting to have issues with the screw AF.

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A weather sealed ultra wide, is that too much to ask?
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 Cideway's gear list:Cideway's gear list
Pentax K-5 II Pentax K-3 Pentax smc FA 50mm F1.4 Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM Pentax smc DA* 50-135mm F2.8 ED (IF) SDM +2 more
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