Arri Alexa Classic shot in Pro Res 4444 24fps yet reflects as 23.98fps in quicktime

[Kang Sheng]

Hi my question is I recently shot something at Pro Res 4444 on the Arri Alexa Classic but after wrangling the footage when I check the info on Quicktime player it says the footage is at 23.98fps. Does anyone know why?

[Mike Krumlauf]

Confused by your question? You didnt mention what frame rate you were wanting to record in? If you are confused by the "4444" that is not your frame rate, its the flavor of Apple Prores.

[Bruce Greene]

Seems like the camera was set to 23.98…

If all your footage is 23.98, just leave it and edit in 23.98fps.

if you have other cameras at 24fps, you’ll need to assign 24fps to the Alexa footage. You may need to adjust the audio as you’ll drift sync every 501 frames I think.