>>2887425depends on camera and camera, but usually no. Not even on auto-iso.
It has to intelligently decide how to manipulate multiple settings with your exposure, as only using a single setting will have more extreme effects (unusual DoF if aperture, or unusual noise if ISO or unusual motion blurring if shutter speed)
If I'm in AV-mode on canon 7dii and turn the exposure wheel while on auto-iso, it might change like
1. slower shutter
2. slower shutter
3. less sensitive iso
4. slower shutter
5. slower shutter
6. less sensitive iso
As you can see, the auto-exposure dial changed both of the 2-of-3 exposure triangle aspects which it was allowed to change. (since I'm in AV mode and I chose the AV myself, that left only shutter and ISO for it to work with)
In TV (shutter mode), it automatically uses both iso and aperture.
And in P (program mode), it adjusts all 3 of the triangle at once automatically.
>>2888380>highest isoI'd say more than anything, the limit is correlated to viewing size.
12800 ISO will look like dogshit when blown up and covering the wall in some massive poster.
But 12800 might be entirely useable as a little thumbnail / tidbit picture somewhere in a corner of a news story or something, where it takes up only a portion of a single page.
The more you scale it up, the more the noise is visible and the opposite is true.
