Published on Saturday, 30 August 2014


ARRI AMIRA to Record ProRes UHD for 4K Production

A new software upgrade for ARRI’s documentary-style AMIRA camera will allow it to record ProRes UHD files to meet 4K production requirements. AMIRA will be able to record all ProRes codecs in Ultra High Definition 3840 x 2160 resolution directly onto the in-camera CFast 2.0 cards, at up to 60 fps.

The video enabled by this upgrade is intended to be suitable for productions that need to generate UHD deliverables and also for content producers and owners who want to increase the longevity of their work and the options to repurpose projects by making them suitable for UHD transmission. The upgrade is made using the camera’s reprogrammable system architecture combined with its existing image quality and processing power. It is expected to be available for purchase at the online ARRI License Shop by the end of 2014.

For productions that have a long enough post production period, an up-sample to 4K can usually be carried out on the Amira’s images after visual effects and other postproduction tasks have been completed at 2K resolution. Conversely, faster-paced productions may not allow the time or resources for such processes in post, which is why a 4K or UHD output direct from the camera is especially useful.

Arri-amira-doco  Arri-amira-doco2

AMIRA’s UHD output uses the same 1.2x up-sample filter that allows ALEXA’s Open Gate mode to optimize the camera’s image performance for 4K distribution, as well as the same sensor pixels. The up-sample to UHD occurs in-camera in real-time, while the camera’s 14+-stop dynamic range, colourimetry, skin tones and organic look and feel remain unaltered.