Question reg. X-T3 ISO behavior

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crowley213 Contributing Member • Posts: 817
Question reg. X-T3 ISO behavior

Starting to do some more night photography I recognized an ISO behavior on my X-T3 which I would like to better understand.


- a certain aperture and shutter speed and then

- increasing ISO

I recognize that

- the histogram moves to the right only until a certain ISO value is reached

- after that any more increase of the ISO value does not move the histogram any further.

Is this the effect of so called ISO invariance?

Maybe somebody could explain so that I understand better and can act accordingly.

Thanks in advance!


 crowley213's gear list:crowley213's gear list
Fujifilm X100T Fujifilm X-T3 Fujifilm XF 50-140mm F2.8 Fujifilm 16-55mm F2.8R LM WR
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Fujifilm X-T3
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