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What does a Screwdrive Converted Pentax DA* 50-135mm F2.8 lens sound like?

Started Jun 8, 2014 | Discussions thread
JeffAHayes
JeffAHayes Senior Member • Posts: 1,968
Re: What does a Screwdrive Converted Pentax DA* 50-135mm F2.8 lens sound like?

OnTheWeb wrote:

Some people asked 'how loud' is a screwdrive converted Pentax DA* 50-135mm F2.8 lens. So I made a Youtube video comparing the the converted Pentax DA* to a Vivitar 100mm F3.5 macro (The plastic fantastic). It was captured with decent quality microphones so hopefully this gives you some idea what to expect after you convert your lens to screwdrive once your SDM fails, which is inevitable.

Pentax DA* 50-135mm F2.8 Screwdrive Sound Comparison (youtube video)

OK, so I haven't yet had SDM failure on my two DA* lenses. I don't know if it's "inevitable" or not but when and if that day comes, what's involved in converting it to screw drive? How expensive is that, vs. having the SDM repaired? Since neither is under warranty after a year, it shouldn't affect the warranty, but how does it affect the quality and/or speed of AF? Obviously it's a bit noiser, as the SDM is pretty silent. But if SDM does turn out to be something that fails, and fails again, I'd like to know what my options are.

Jeff

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Pentax WG-3 Pentax K-5 Pentax K-30 Pentax K-3 Pentax smc DA* 16-50mm F2.8 ED AL (IF) SDM +8 more
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