Why bother changing base ISO?

Started Jul 18, 2007 | Discussions thread
Muntz Contributing Member • Posts: 967
Re: Why bother changing base ISO?

Chuck Yadmark wrote:
Jim Kaye wrote:
Why not just leave the ISO at 100 and

bump the "exposure" in post by various amounts depending on the light
in each shot?

Anyone else ever shoot this way?

Only when I've made a horrible mistake. You can only get away with
that within a stop. If you don't feel like thinking, that's what the
P mode and auto ISO is for.

You'd be surprised. Julia Borg and I were discussing this and she was contending that what the OP is suggesting is right. I tried taking shots underexposed by 4 stops at iso 100 and then the same shots properly exposed at iso 1600 and the results were surprisingly similar.

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