The Canon EOS R6 V and RF 20-50mm f/4L IS USM PZ are Coming May 13
- EOS Bodies
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Sorry, I think you were spot on and zoom-by-wire is the right name. My issue is really about the switch mechanism to control the zoom. Often that's a rocker switch of some sort, and that's different from a zoom ring. Canon designed the RF-S 14-30 PZ with a rocker switch in the form of a ring, but it's still a rocker switch. With the RF lens focus-by-wire, you rotate the focus ring freely around the lens and the focus motor moves.I think I named it incorrectly. It works like certain car steering setups that are called "by wire". Electrical current (the wire) to a servo that doesn't have any manual input other than a rocker switch (the steering wheel), unlike power steering, which would sort of be a normal zoom ring. There could be a different name and for it in this sort of application.
With the RF-S 14-30 PZ, you rotate the zoom ring a little bit and the lens zooms at low speed, you rotate the zoom ring a little more then it hits a stop and the lens zooms at high speed. The 'zoom ring rotation' is just a short travel over probably something like a 10° arc, 5° each way from center position to hit the high speed setting. To me, that's not zooming like any other lens – it's a different control mechanism. Not the 'by-wire' part but the 'ring' part.
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