ARRI Forum

I have a question concerning the Alexa and the Alexa Mini cameras:
I have to shoot a Tv series. The company asks me to deliver a 16:9 4K UHD (3840X2160)
I know I can shoot in sensor mode 16:9 3,2K (3200X1800) and set the camera to do an in-camera processing 1,2x up-sample to the UHD output resolution of 3840X2160.
My question is: can I shoot open gate sensor mode (target aspect ratio 1,78:1 this is: 3414X1920) and have the camera do the up-sample to UHD recorded in Pro-Res 4444 XQ?

Thank you for your help

Andreu Rebés AEC
Director of Photography

Dear Andreu,

unfortunately that is not possible. Open Gate is an ARRIRAW format and does not offer an internal upscale-path to UHD.
Using the 3.2K mode as you wrote is the only option to achieve this in-camera.

Cheers,
Jan

Thank you for you answer

Andreu Rebés AEC
Director of Photography