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- 2026-10-13
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Atomos SUMO 19 AtomOS 9.3 Release Notes
This document outlines the release notes for the AtomOS 9.3 firmware update specifically designed for the Atomos SUMO 19 recorder. A critical change in this version is that all users must now activate the ProRes RAW codec; without activation, the device will default to ProRes HQ when a RAW source is detected.
The update introduces several new features and improvements, including social media-focused frame guides for various aspect ratios (Instagram, Facebook, Twitter), a 9 Grid overlay for composition, and options to legalize input signal levels. It also adds anamorphic de-squeeze modes for specific lenses, IRE % labeling on the false color scale, rolling file naming capabilities, support for 17:9 DCI letterbox resolution, and an Interlaced Display mode.
Covers: Important Note · New features · Social media focused frame guide · Legalize input signal levels · Anamorphic de-squeeze modes · False colour
Latest Atomos manuals
Atomos SUMO 19 AtomOS 9.3 Release Notes
User Manual 2 pages · 474 KB · ENRelease notes for the AtomOS 9.3 firmware update for the SUMO 19, detailing new features like social media frame guides and anamorphic de-squeeze modes…
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User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Atomos manuals
What happens to ProRes RAW after the AtomOS 9.3 update?
All users will be required to activate ProRes RAW; if not activated, the SUMO will default back to ProRes HQ.
How do I activate ProRes RAW on the SUMO 19?
Users must visit atomos.com/activation and follow online instructions to generate a code.