SL2-s EVF stuttering during 24fps video

[boostisbest]

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Hi, I noticed that the EVF stutters when when I record 24fps video. The EVF is lag free and smooth up until the point I hit the shutter button to start filming. This is specifically when recording in 24fps. 30fps is a little bit better, and when I use 60fps it is pretty smooth. Is this normal? My guess is that the lower frame rate is giving the impression of the stuttering video. Seem to only noticeable in the EVF. I can't really tell if it is happening in the LCD. I'm new to video, so this is not something I've had experience with in the past.

Thanks!

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[Photoworks]

Yes, it is like that in many cameras with EVF

[hansvons]

That’s the beauty of 24 fps. When handled with care it looks cinematic because, well, it‘s the traditional cinema‘s frame rate. 

But when panning you have to take care of the stuttering. With some training you will find the right panning speed - focal length ratio. To get a grip of that and not screwing up the footage is part of the cinematographer‘s craft.

Otherwise, choose 60 fps but don’t expect the footage to look 'cinematic'.

 

[beewee]

On 3/13/2022 at 5:14 PM, boostisbest said:

This is specifically when recording in 24fps. 30fps is a little bit better, and when I use 60fps it is pretty smooth. Is this normal?

Yes, it’s normal. When shooting stills, the EVF is running at either 60 or 120 fps, depending on the EVF settings. This means the sensor is also updating at 60 or 120 fps. When you’re shooting video at 24 or 30 fps, the sensor can only update at 24 or 30 fps and this gives the stuttering impression. To get a smoother look at 24 fps, you’ll need to shoot at a lower shutter speed. Rule of thumb is to target 180 degree shutter but this often requires ND filters when shooting in daylight. This is why NDs are so popular among people that shoot video professionally.

[boostisbest]

Thanks for the answers everyone. Makes perfect sense.