ISO Vs. Exposure Compensation

[Marko]

ISO fiddling and exposure compensation can be used to accomplish the same task. All exposure compensation does is make the scene brighter or darker relative to the camera meter's exposure setting. ISO - shutter speed - and aperture are all directly related in a linear fashion.

Let's say the meter reading says F4 at 1/60 and you are shooting at ISO 200 in manual mode.

Then setting the ISO to 400 is the same as plus 1 stop exposure compensation. You can do either and get the same result.

Due to the fact that higher ISO can introduce more noise, I use exposure compensation instead. As far as I know depending on what camera you have, at the end of the day exposure compensation works by manipulating the shutter speed or the aperture.
So again F4 at 1/60 at ISO 200.
Make that shutter speed 1/125 and it's identical to minus 1 exposure compensation. OR make the ISO 100 F4 at 1/60 and accomplish the same thing. OR make the F-stop F5.6 1/60 ISO 200 to accomplish the same thing.

Does that make sense?

thx
marko