So this was weird

[HFS]

View attachment 451146

Now THAT was a movie.

 

[Catt57]

You can get the same effect trying to record a propellor. It’s called aliasing and old mechanics used it to time their engines.

Wouldn't that actually be rolling shutter?
https://en.wikipedia.org/wiki/Rolling_shutter

 

[Buddhaman]

Wouldn't that actually be rolling shutter?
https://en.wikipedia.org/wiki/Rolling_shutterView attachment 451359

I’m remembering what was discussed in a circuits class in college and the professor used the propellor as an example. Im more confused since the article for aliasing mentions digital cameras. Aliasing - Wikipedia

Temporal aliasing frequencies in video and cinematography are determined by the frame rate of the camera, but the relative intensity of the aliased frequencies is determined by the shutter timing (exposure time) or the use of a temporal aliasing reduction filter during filming

Found an article discussing the differences. Looks like it’s rolling shutter: Camera - workarounds to moire, aliasing, rolling shutter

 

[ConstitutionCowboy]

Kinds like the wagon wheel effect in the old westerns.

Good thing our sight is analog.

Woody