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Exposure is locked in afc on X-T4

Started May 13, 2021 | Questions thread
boogisha
boogisha Senior Member • Posts: 2,858
Re: Exposure is locked in afc on X-T4 - slow exposure change in AF-C?

HanVroon wrote:

That's weird.

With my X-T4 in AF-C mode, whether "SHUTTER AF" is set to ON or OFF, the camera changes shutter speed instantly as long as "SHUTTER AE" set to OFF.

Thanks for checking. Just to confirm, you are having shutter-button half-pressed, right? Because without it, exposure change is instant for me, too, as expected - but once the shutter button is half-pressed and held like that, exposure change becomes slow (smooth).

I used fixed ISO and aperture to see the shutter speed change as the scene gets darker or brighter.

I tried using the fixed ISO, but I still have the same behavior, unfortunately (using fully manual lens, my aperture is already fixed, too).

Your X-t3 behaviour doesn't seem right. Digital camera's react instant on exposure measurement, the only thing that may be slow is a hunting autofocus.

While I agree (only mine?) X-T3 doesn`t appear to work correctly here, I disagree about the rest - it was one of the firmware updates that brought "smooth" exposure change exactly, but for video (smoothing previously existing "exposure ramping"). Not sure if it didn`t introduce the bug I`m experiencing to AF-C stills at the same time.

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