The new LUT is the default Rec709 choice in all the ARRI cameras available (AMIRA, SXT, Mini, LF and MiniLF) and colorists should have access to it to be able to recreate the exact same image that was displayed on set. Please see our technical note on LogC4 WVO for further details. It can be downloaded here on Lowepost (members) or be generated in ARRIs LUT generator. When SDI Processing is set to “Wireless Video Optimized LogC4”, the indication in the SDI status overlays will show “WVO”, where normally “LOG” or “Look” are shown.
If you are using the “Look” SDI processing, which means that you are applying a look file in camera BT.709 (Standard Dynamic Range (SDR)) to BT.2100 HLG 'direct-mapping', preserving the appearance of SDR BT.709 (SDR) to BT.2100 HLG 'up-mapping', slightly increasing the contrast in the SDR.
If you are simply looking at the SDI signal without color grading on set.In the following situations you should not use WVO LogC4: A matching WVO decoding LUT must be used after signal reception to reconstitute regular LogC4.
#Rec 709 lut download update#
The WVO encoding is an option built into the ALEXA 35 from Software Update Package SUP 1.1 on.
Wireless Video Optimized LogC4 (WVO LogC4) is an intermediate encoding of LogC4 that is designed to improve image quality when transmitting LogC4 over wireless video transmitters. If you are planning to employ a wireless video setup in your LogC4 signal chain form camera to DIT, carefully check your signal for image artefacts during prep! Due to a reduced bandwith over the air you might experience banding artefacts visible in gradients or patches of even colors.
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