gf1 Auto ISO with Shutter priority and Manual lens

kahren

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Mar 21, 2010
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so if you put the camera in Shutter priority mode, and use Auto ISO with a fully manual lens it won't adjust iso? considering i pick whatever shutter speed i want? or am i doing something wrong? mine is stuck on iso 100
 

Howi

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so if you put the camera in Shutter priority mode, and use Auto ISO with a fully manual lens it won't adjust iso? considering i pick whatever shutter speed i want? or am i doing something wrong? mine is stuck on iso 100
Hi kahren, It's because the camera cannot tell what aperture you have set and therefore cannot set the ISO.

shutter speed + aperture + ISO = exposure setting
all three are inter related, if one is missing, the relationship is broken.
just set the ISO manually. :thumbup:
 

Wasabi Bob

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Nov 23, 2010
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New Jersey - United States
Which lens

so if you put the camera in Shutter priority mode, and use Auto ISO with a fully manual lens it won't adjust iso? considering i pick whatever shutter speed i want? or am i doing something wrong? mine is stuck on iso 100
So what lens are you using? Is it a lens you've adapted using an aftermarket converter? In order for the feature to work, the camera needs to communicate with the lens.
 

nseika

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Nov 22, 2010
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Jakarta, Indonesia
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Lois
Hi kahren, It's because the camera cannot tell what aperture you have set and therefore cannot set the ISO.

shutter speed + aperture + ISO = exposure setting
all three are inter related, if one is missing, the relationship is broken.
just set the ISO manually. :thumbup:
Considering that it can be done, that would be the manufacturer's choice or how they calculate the light

https://www.mu-43.com/f43/why-auto-iso-not-available-m-mode-9178/
 
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