Low light EV 'ratings' by f stop for A7iii?

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DustyBin
DustyBin Contributing Member • Posts: 514
Low light EV 'ratings' by f stop for A7iii?

I believe the A7iii can focus down to -3EV at f2 and wondered how low it can go with faster lenses.  Anyone have a source that provides values for different f stops? e.g. 1.4, 1.8, 2, 2.8?

I noticed in the latest Olympus M1ii firmware updated, they've somehow improved the low light focusing abilities... would that be possible with A7iii?  Of course, being able to focus at a really low light level doesn't help much with the Oly given its performance at high ISOs... One of the reasons I'm selling mine and have just bought the Sony!

 DustyBin's gear list:DustyBin's gear list
Canon EOS 7D Mark II Canon EF 100-400mm F4.5-5.6L IS II Olympus OM-D E-M10 II Olympus PEN-F Sony a7 III +12 more
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