Alexa SXT Plus

The ARRI ALEXA SXT Plus (Super Xtended Technology) is the most versatile and flexible of the ALEXA SXT cameras, a true all-rounder. With an integrated wireless radio for camera and lens remote control, the ALEXA SXT Plus offers the best value and widest range of uses. It also offers extra features such as; tilt/roll sensors, electronic horizon, additional connectors for camera and lens control, signal output and accessory power.

With integrated wireless radio for lens remote control, you can easily plug in and go! Not only saving you time but also saving you weight in your overall rig, as the use of an UMC-4 is no longer needed.

ALEXA SXT offers a total of 14 in-camera recording formats, seven of which are completely new. All sensor modes can now be recorded in ARRIRAW or ProRes.


The Alexa SXT records onto Codex XR Capture drives and then transferred via the supplied Thunderbolt Codex Reader*.

*Codex Drivers Required for Offloading Media

*WCU-4 Hand Control Unit, Focus Motor, Iris Motor & Zoom Motor not included in SXT kit

Technical Specifications
Sensor 35mm format ARRI ALEV III CMOS with Bayer pattern color filter array
Dimensions Length: 331mm Width: 189mm Height: 158mm
Weight ALEXA SXT Plus body with electronic viewfinder, viewfinder cable, viewfinder mounting bracket and handle: 8.4 kg
Lens Mounts Available PL
Internal Filters N/A
Exposure Index EI 800 base sensitivity
Recording Media Codex XR Capture Drives (SXR Capture Drives, CFast 2.0 cards, and SxS Pro cards possible with adapters)
Recording Formats 16:9 2880 x 1620 used for 16:9 ARRIRAW 2.8K 16:9 3168 x 1782 used for 16:9 ARRIRAW 3.2K 16:9 2880 x 1620 down sampled to 1920 x 1080 16:9 ProRes HD 16:9 2880 x 1620 down sampled to 2048 x 1152 for 16:9 ProRes 2K 16:9 3200 x 1800 used for 16:9 ProRes 3.2K 16:9 3200 x 1800 up sampled to 3840 x 2160 for 16:9 ProRes 4K UHD 6:5 2578 x 2160 used for 6:5 ARRIRAW 2.6K 6:5 2560 x 2146 down sampled to 2048 x 858 for 6:5 ProRes 2K Anamorphic 6:5 2560 x 2146 re-sampled to 4096 x 1716 for 6:5 ProRes 4K Anamorphic 4:3 2880 x 2160 used for 4:3 ARRIRAW 2.8K 4:3 2880 x 2160 used for 4:3 ProRes 2.8K Open Gate 3424 x 2202 used for Open Gate ARRIRAW 3.4K Open Gate3424 x 2202 used for Open Gate ProRes 3.4K 3414 x 2198 up sampled to 4096 x 2636 for Open Gate ProRes 4K Cine
Recording Codec ProRes 4444XQ, 4444, 422 (HQ), 422, 422(LT), ARRIRAW
Recording Frame Rates 16:9 0.75 - 120 fps 6:5 0.75 - 96 fps 4:3 0.75 - 96 fps Open Gate 0.75 - 90 fps
Power Input 10.5 to 34 V DC. Approx. 90 W power draw for camera and EVF-1
Optional Accessories
ARRI MkIV Follow Focus
ARRI WCU-4 with Focus CLM-4, Iris CLM-4 & Zoom CLM-3
LMB-15 3 Stage Clamp On Mattebox
O'Connor 25/75 Head & Legs
Ronford Atlas 40 Head & legs