Are there any "rules" for using ISO?

Started Apr 3, 2013 | Discussions thread
Limburger
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Re: Are there any "rules" for using ISO?
In reply to GreenMountainGirl, Apr 3, 2013

GreenMountainGirl wrote:

I have been experimenting with low-light images of moving subjects (mostly deer) and getting mixed results.  Using aperture-priority produces slower shutter speeds, and raising ISO does not seem to work.  Using shutter-priority works better, but still often have to make exposure adjustments in LR4.  Most of these photos are at/close to 300mm, so have not noticed any significant effect on DOF, just need to get a better idea of ISO (and exposure compensation) because there often isn't much time for "test photos"!

Susan

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GreenMountainGirl

Not clear to me what you're saying but anyways...

DOF is affected by aperture in your case and nothing else. Maybe you mean switching from Av to Tv didn't affect DOF.

How did you raise ISO in Av mode?

Maybe try full auto (forget EC) and raise the ISO to a level you get your shutter speed and aperture you need.

As well have a read on metering I think that far more interesting than EC.

Short: get out of automated modes.

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Cheers Mike

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