Meanwhile, Dado Valentic has already implemented it in Look Designer for Resolve Studio.

Unfortunately, I haven't received or seen an update on the topic.

I have the Atomos SUMO19. Would it be possible in the future to have the EL Lachman Zone System via firmware update on this display?

Thank you for bringing the EL Lachman Zone System to the cinematography and postproduction field. Indeed, it's an invaluable tool, especially when implementing a logarithmic scale system. I’m glad the system is already implemented in Dado Valentic’s Look Designer in Davinci Resolve. I hope others in post-production will support this implementation. Is it possible to use the EL Lachman Zone System on-set and in post-production in HDR workflow?