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Arri Alexa Plus 4:3 w/ XR module - anamorphic, 3.2K prores, arriraw


Kevin Ross

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The Arri Alexa Plus 4:3 (K1.71150.0) is like the standard Alexa Plus, but has a 4:3 Super 35 sensor ideal for using anamorphic lenses. The full area of the sensor is used and a much higher image quality retained - the magic that anamorphic lenses provide is rendered faithfully and fully in the digital image. This can also be used in 16:9 mode just like any Alexa, so it's versatile even if you're not using anamorphic. This has the exceptional film-like organic image the Alexas are known for with extended clean highlights, low noise floor, natural skin tones, excellent color separation, and cinematic depth. Extremely rugged and reliable build with ergonomics and easy usability well considered. Form factor ideal for balanced shoulder use and on tripod.
The newer Alexa Plus models have all the features of the Alexa Classic EV, but adds features such as: Arri wireless lens control system compatibility, electronic horizon, lens mount has LDS contacts (lens data system), extra monitor BNC out (1.5G HD-SDI), GPS function, lens synchronisation for 3D, a third RS accessory power output, built-in position and motion sensors, and quick switch BNC connectors.

These come with the Alexa Plus 4:3 license bundle - which includes high-speed (120fps), DNxHD recording, and anamorphic de-squeeze standard.

Can record in HD / 2K ProRes up to 4444 and HD DNxHD. This has the newest SUP 11.1.1 which allows 3.2K Pro Res at 16:9 (which is easily upscaled to 4K / 3.8K UHD). Also has the XR module upgrade just like the XT models have, so also can do internal ARRIRAW 2.8K as well (though note does not do Open Gate). This module uses capture card drive such as Codex CDX-3730. But can also use SxS Pro / Pro+ cards if adapter CDX-3790 (K2.48838.0) is installed. Can also work with qualfied SanDisk Extreme Pro CFast 2.0 card with use of adapter K2.48839.0.

Maximum frame rates are: 16:9 ProRes HD at 120fps, 16:9 ProRes 2K at 60fps, 16:9 Prores 3.2K at 30fps. 16:9 ARRIRAW at 120fps, 4:3 Prores at 48fps, 4:3 ARRIRAW at 90fps. Some reduced frame rates at 4:4:4 when using SxS media instead of CFast 2.0 or XR capture drive.

Additional features include: 14 stop dynamic range, EI 800 base sensitivity (160-3200 range), Log C / Rec 709 / DCI P3, audio recording over 5-pin XLR line level input, surround view, false color exposure check, peaking focus, color bars/tone, and much more.

This has the XR module upgrade installed, allowing internal ARRIRAW onto CDX-3730 drives (adapter are available to allow Prores / DNxHD onto SxS / SxS Pro+, or Sandisk Extreme Pro CFast 2.0 cards). The XR module makes this very similar to the Alexa XT model, except without Open Gate. Newest Sup 11.1.1 installed, unlocking 3.2K pro res recording in addition to HD / 2K. Also includes many valuable accessories: EVF-1 viewfinder with eyecup, long length viewfinder connecting cable, VMB-2 viewfinder mounting bracket, V-mount battery plate, CCH-1 center top handle, BP-13 bridge plate, sliding dovetail plate. This does not have shoulder pad or velcro for pad installed. This will ship in a hard case. The case is not in very good condition, but will provide extra protection in transit and is considered a "bonus" item. Cosmetically in acceptable condition for a professionally used Alexa - with just some paint wear, touchups, and scuffs on body - but no damage or indications of rough usage. Overall very presentable. This has a reasonable 3960 hours of use. All features, functions, sensor, connections and included accessories are tested in excellent working order.

alexaplus43xr1214e.jpg

alexaplus43xr1214a.jpg

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