Eugene Zagidullin

Friction coupling? As part of a governor mechanism or something else? I thought they have a rheostat based centrifugal governor. I expect it to have something like a rheostat followed by a current amplifier (maybe that big transistor at the top working as emitter follower). I don't have that experience but at least I understand how PID and PLL control works. My naive idea is to start from a simple integrator based control loop. Integral control will automatically give not just a desired speed at the moment but an average speed over a period of time (or a specific number of frames per say minute regardless of fluctuations) which is what (again from my naive POV) expected from a controller to give a syncable result.

I'm an amateur film photographer and I just want to extrapolate my still shooting experience onto a moving images. I still don't know does it worth it and will I stick to this so I'm looking for a cheap 16mm camera. There is a lot of information about Krasnogorsk but what about Kiev 16 U and UE? There isn't mush information and reasonable opinions about them even in Russian. All I have is just a few very short reviews on YouTube and one or two articles. What I find appealing: It comes with a set of prime lenses instead of a zoom lens. I don't trust zoom lenses mostly because I use to think that they aren't sharp enough. UE version seems to be quite easily convertible to 12v power and a digital speed control. It might be a fun project for me on its own. It's so ugly that I find it weirdly appealing. On the downside it seems to have more plastic components in a film transport than K3