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Display ISO will be chosen when auto iso is set

SimonW

By SimonW
in Fuji X-T5 / Fuji X-T50

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SimonW Contributor

SimonW

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The XT5 and X100vi manuals both say that if the camera is set to auto ISO the chosen ISO will be displayed while half-pressing the shutter. I've seen some posts which confirm this, but on both my cameras the display shows only the set maximum even when the preview shows the shot will be over exposed even at the lowest possible ISO. Is possible some setting for something else affects this behavior?

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  • 4 weeks later...
pw-pix Enthusiast

pw-pix

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Go into the auto-iso setting in the menu and check the range you have assigned to the range you've chosen.

For exanple, I have Auto 3 set to use 200 to 12800 ISO and a minimum shutter speed of 1/100 sec.

Perhaps somehow you set the same lower and upper iso for the range you're using.

The auto iso works correctly on my X-E3 and my X-T5.

Edited by pw-pix
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SimonW Contributor

SimonW

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pw-piz, Thanks for responding, but perhaps you mis-understood. My auto iso is set with upper and lower limits and it works perfectly. EXCEPT that while composing the shot and adjusting shutter speed and aperture it does not tell me the iso it will actually use - it displays the maximum it might use (which is my chosen maximum).  Only after I take the shot can I see the actual iso it used. I would have liked to know in advance, but I guess if I've set my max and min limits as I wish then it really doesn't matter.

It's the same on both my Fuji cameras and I suspect it's the description in the manuals that's incorrect.

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SimonW Contributor

SimonW

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This video posted today mentioned this. HEREhttps://www.youtube.com/watch?v=1x_VNHE0TqE

It didn't quite address my problem, but it demonstrated how a half-press on the shutter button should reveal the actual iso measured rather than the set maximum. For me this does not happen. However, it did make me do some testing - and quickly found an answer:- The half press does not work, but the AELock button does indicate the iso value it locks to. Obvious really!

I've still not figured out why neither of my cameras do it with a half press on the shutter, maybe I've changed a setting somewhere on both of them that's caused it. If I ever find out what I'll post it here.

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abmet Contributor

abmet

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Both my X-T5 and X100V display the calculated iso when half press the shutter. Did you happen to change the  shutter AE to off in the button/dial settings?  I think if that is off the iso continues to show max iso when shutter half pressed. 

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SimonW Contributor

SimonW

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WOW, Yes, you are of course correct. I've turned them on now for both s and m and cont, and now it works exactly as it should. Like most things, simple when you know how. I didn't know that setting existed, and can't think why anyone would want it turned off, nor remember ever doing so. Anyway, thank you so much abmet for helping.

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  • 9 months later...
Cronin Newbie

Cronin

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Hello, I have a new xt5 and have enjoyed its setup, until now. I hope someone with patience can help me through my ISO dilemma. My question: I have assigned settings for Auto ISO 1,2 and 3.  Should I be able to select Auto ISO 1, 2, or 3 for a shot? If so, how?  Or is the camera supposed to. At present, my screen shows Auto ISO 3, and never changes. I assigned ISO to the rear dial to no effect. Of course, when I half depress the shutter button is see the actual ISO in real time, but the function of the Auto ISO and how to control it has me confused. Thanks for any help. 

Edited by Cronin
Left out an important fact.
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bergat Community Regular

bergat

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On 4/5/2025 at 12:16 PM, SimonW said:

This video posted today mentioned this. HEREhttps://www.youtube.com/watch?v=1x_VNHE0TqE

It didn't quite address my problem, but it demonstrated how a half-press on the shutter button should reveal the actual iso measured rather than the set maximum. For me this does not happen. However, it did make me do some testing - and quickly found an answer:- The half press does not work, but the AELock button does indicate the iso value it locks to. Obvious really!

I've still not figured out why neither of my cameras do it with a half press on the shutter, maybe I've changed a setting somewhere on both of them that's caused it. If I ever find out what I'll post it here.

I have the x-t5 and the H1 too but only with the X-T5 it happens what you has told. I discovered that if you set the Af-s the problem disappears. Only with the af-c with a half -press on the shutter button reveals tha maximum iso, otherwise with set the af-s it is shown the iso measured by the camera.

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