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05-13-2021, 08:54 AM - 1 Like   #31
mlt
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QuoteOriginally posted by dlhawes Quote
Ok, maybe not a software problem, but the way the SDM lenses seem to fail over extended periods of time, whatever power amplifier circuitry is in the cameras (both K-1 and KP in my experience) must be what's actually failing over time. I've got a DA* 55mm SDM that I sent back under warranty and Precision purportedly fixed it, but now that same lens is getting cranky again, and it works the same way on both cameras. That's the first good reason I've come across that persuades me that it may be worth it to buy a K3-iii (when the KP dies or the prices come down dramatically).
You might try renting one, when or if that becomes an option, to verify your lens focus performance.

05-13-2021, 03:45 PM   #32
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QuoteOriginally posted by mlt Quote
You might try renting one, when or if that becomes an option, to verify your lens focus performance.
I used the *55 quite a bit on Sunday and noticed that the AF consistently worked, which has not always been the case. All three copies of it that I've owned have been prone to lagginess after going unused a few weeks. I know that lens hadn't been on a camera since back in January so perhaps the new K3 is better at pushing the SDM. Over the weekend I'll try it on both cameras.
05-13-2021, 08:09 PM   #33
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I tested my 31mm Limited today so I am going to put the 50-135 on tomorrow and test the SDM and focusing speed and I'll report back the results. The 31 did really good btw.
05-17-2021, 03:47 AM   #34
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