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Is Panasonic 12-35mm II parfocal?

Started Feb 25, 2018 | Discussions thread
kolyy Senior Member • Posts: 1,596
Re: Is Panasonic 12-35mm II parfocal?
1

Stejo wrote:

left eye wrote:

Stejo wrote:

left eye wrote:

why does the aperture click and cause flicker when zooming in / out?

For any number of irrelevant reasons. That's not an indication of anything.

Again, if you got a source, schematics, anything that backs up the claim that the lens actually plays with the physical diaphragm to maintain constant aperture, please do post them. It would be an entertaining read.

...or entertaining to watch?...

https://www.youtube.com/watch?v=u2vjROGkgUA

The youtube comments state the obvious that this was either user error or a defective unit.

The 12-35 has been in the hands of very capable and meticulous film makers for a number of years now. If it had such a glaring flaw, we'd know.

But we know it, just you don't. So you are wrong, this is very well known and my 12-35/2.8 behaves exactly the same. The second generation should have fixed this and it was even highlighted by Panasonic in the press release:

Notably, the new lenses excel in video recording performance. In addition to the silent operation achieved by the inner focus drive system, the micro-step drive system in the aperture control section helps the camera to smoothly capture the brightness changes when zooming or panning.

https://www.dpreview.com/news/2840690248/panasonic-updates-four-lenses-improving-autofocus-and-image-stabilization

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