>>4334776>the noise performance of ISO 800 on m43 is worse than ISO 3200 on FFWhat?
Are you keeping your aperture the same?
Set your aperture to two stops faster than the FF. You'll end up with similar depth of field and an ISO two stops lower, and roughly the same amount of noise. ISO 800 should have a similar amount of noise, not worse than 3200 on Full Frame.
(And because m43 lenses don't need to be as large, they're cheaper and easier to manufacture so they tend to do a lot better at lower f-stops in IQ).
Also, AI denoise helps even the game a lot. Normally I hate anything mixing AI and photography, but this is one of the times it's actually based.
Also, there's a lot of technical reasons that m43 is going to perform better than you'd expect just based on basic theory. For example, the photosites on m43 sensors are tuned to be biased in favor of preserving dynamic range in lower light (at the cost of dynamic range at the higher end, which we know to ETTR anyway, right?) (this is why a lot of m43 cameras used to have native ISO starting at 200, the sensors are inherently more sensitive), or computational methods like Panasonic's Dynamic Range Boost.
With all of that, I fully do expect a Lumix G9ii at f/4 ISO 800 to outperform a Sony A7C at f/8 ISO 3200. The images would be equivalent except, for the reasons I've said above, the G9ii would probably have LESS noise. Because of Dynamic Range Boost, the g9ii would probably compare favorably in dynamic range, too.
G9ii will cost a small premium right now for getting into a system with cheaper, smaller, lighter weight lenses. I think that's pretty fair as it stands now. But the G9ii is still a pretty new camera and will continue to drop in price and the A7C is hitting the flat part of its deprecation curve -- in a year or two, the G9ii will be much more similar in price.
