Thad Donovan

Thanks! I think I've been using my A7Riii incorrectly in low light. I shoot everything (low light or otherwise) in slog3.cine at 800 ISO. It's a carryover from using the FS7 in Cine IE mode where the ISO is locked at 2000. I guess I figured I'd lock in at 800 ISO on the A7Riii. Time to run some tests.

I’m looking for help in understanding something about native ISO. I’ve seen native ISO described as “the highest ISO before the signal is amplified” (or something close to that). If that’s the case, then wouldn’t a high native ISO be preferred? For example, the Blackmagic Ursa Mini G2 shows a native ISO of 3200. The Arri apparently has native ISO of 800. Does that mean that the Arri amplifies the signal at 1600 ISO (for example) and therefore is not as desirable from a noise perspective as a higher native ISO? Whereas the BMUMPG2 would NOT amplify the signal at 1600 ISO, so is thereby cleaner in that regard. Something tells me I’m wrong on that, but I just don’t know why. Thanks for any clarifications!