Performance of a9 focusing stopped down in AF-C in low light?

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Sentenza Forum Member • Posts: 52
Performance of a9 focusing stopped down in AF-C in low light?

I would like to know, in a low light situation (e.g. fluorescent lit room, like 1/60 F2.8 ISO3200), how does the a9 perform in AF-C, with aperture stopped down to F5.6 - F8, and with "aperture drive in AF" set to "standard" ("focus priority" mode is not applicable anyway because it doesn't work with the mechanical shutter i.e. it doesn't work with flash).

And same question, but in a very low light situation (e.g. dimly lit room, like 1/60 F2.8 ISO12800)?

I'm not asking about performance regarding initial focus acquisition (which may be done wide-open-ish depending on "setting effect", as far as I understand), I'm asking about performance regarding continuous focus tracking, once the initial focus acquisition is done.

Thanks

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