Offering a large-format sensor in a small form factor, ARRI has introduced its new Alexa Mini LF camera, which combines the compact size and low weight of the Alexa Mini with the large-format Alexa LF sensor. According to the company, it “provides the best overall image quality for large-format shooting” and features three internal motorized FSND filters, 12V power input, extra power outputs, a new Codex Compact Drive and a new MVF-2 high-contrast HD viewfinder.
The new Alexa Mini LF cameras are scheduled to start shipping in mid-2019.
ARRI’s large-format camera system, launched in 2018, is based around a 4.5K version of the Alexa sensor, which is twice the size and offers twice the resolution of Alexa cameras in 35 format. This allows for large-format looks, with improvements on the Alexa sensor’s natural colorimetry, pleasing skin tones, low noise and it’s suitable for HDR and Wide Color Gamut workflows.
Alexa Mini LF now joins the existing system elements: the high-speed capable Alexa LF camera; ARRI Signature Prime lenses; LPL lens mount and PL-to-LPL adapter; and Lens Data System LDS-2. The combined feature sets and form factors of ARRI’s two large-format cameras encompass all on-set requirements.
The Alexa Mini LF is built for use in challenging professional conditions. It features a hard-wearing carbon body and a wide temperature range of -4° F to +113° F, and each Alexa Mini LF is put through a vigorous stress test before leaving the ARRI factory and is then supported by ARRI’s global service centers.
While Alexa Mini LF is compatible with almost all Alexa Mini accessories, the company says it brings significant enhancements to the Mini camera design. Among them are extra connectors, including regulated 12V and 24V accessory power; a new 6-pin audio connector; built-in microphones; and improved WiFi.
Six user buttons are now in place on the camera’s operating side, and the camera and viewfinder each have their own lock button, while user access to the recording media, and VF and TC connectors, has been made easier.
Alexa Mini LF allows internal recording of MXF/ARRIRAW or MXF/Apple ProRes in a variety of formats and aspect ratios, and features the new Compact Drive recording media from Codex, an ARRI technology partner. This small and lightweight drive offers 1TB of recording. It comes with a USB-C Compact Drive reader that can be used without any extra software or licenses on Mac or Windows computers. In addition, a Compact Drive adapter can be used in any dock that accepts SXR Capture Drives, potentially more than doubling download speeds.
Another development from Codex is Codex High Density Encoding (HDE), which uses sophisticated, loss-less encoding to reduce ARRIRAW file sizes by around 40% during downloading or later in the workflow. This lowers storage costs, shortens transfer times and speeds up workflows.
HDE is free for use with Codex Capture or Compact Drives, openly shared and fast: ARRIRAW Open Gate 4.5K can be encoded at 24fps on a modern MacBook Pro.
ARRI’s new MVF-2 viewfinder for the Alexa Mini LF is the same high-contrast HD OLED display, color science and ARRICAM eyepiece as in Alexa LF’s EVF-2 viewfinder, allowing optimal judgment of focus, dynamic range and color on set.
In addition, the MVF-2 features a large, four-inch flip-out monitor that can display the image or the camera control menu. The MVF-2 can be used on either side of the camera and connects via a new CoaXPress VF cable that has a reach of up to 10m for remote camera operations. It features a refined user interface, a built-in eyepiece lens heater for de-fogging and a built-in headphones connector.