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What's the truth about the Panasonic 14-140II?

Started Nov 10, 2014 | Discussions thread
rlumpy Regular Member • Posts: 169
Re: What's the truth about the Panasonic 14-140II?

Warning: tecnobabble ahead

Here's a thought I had about these two problems, shutter shock and video OIS vibration issues: are they related? I know that electronic servo control loops, which this lens probably employs, can be underdamped to provide fast response, with the unfortunate side effect of some ringing in the loop. Is this happening here? This may be an unfixable problem short of redesigning or modifying the circuitry involved. Or, they may be taking manufacturing shortcuts, omitting servo tuning operations that get around parts tolerances.

A good but highly technical explanation of these issues is

http://www.compumotor.com/catalog/cataloga/a36-a38.pdf

 rlumpy's gear list:rlumpy's gear list
Fujifilm FinePix S6000fd Sony Cyber-shot DSC-HX100V Panasonic G85 Panasonic Lumix G Vario 45-150mm F4-5.6 ASPH Mega OIS Panasonic Lumix G 25mm F1.7 ASPH +6 more
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