The ARRI Alexa Plus 4:3 includes a 4:3 super 35 sensor which is capable of anamorphic de-squeeze. Internally it is equipped with the Alexa sensor’s high dynamic range and film-like look. The sensor has a base sensitivity of EI 800 and ARRI’s signature colour science.
The Alexa Plus includes the ability to record ARRIRAW, ProRes, DNxHD and is capable of switching between 16:9 and 4:3 sensor modes.
The camera also features connections for Focus, Iris and Zoom motors. A built-in receiver enables the use of the ARRI WCU-4 or SXU-1 directly to control the camera and motors.