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080/366: ISO Revisited [Uncertain Principles]
A little while back, I did a comparison of the different ISO settings on my camera, and a bunch of people commented that it would be interesting to try to match two photos at different levels. So, here’s that:
Trying to match two photos at the extremes of the ISO settings on my camera.
These aren’t quite perfectly matched, because the time settings give me a limited range of options, but it’s pretty close. The higher ISO setting ought to be 128 times more light-sensitive than then lower, and it’s 1/125th of the exposure time.
And… those look pretty similar. I’m honestly not sure how one would quantify this, so I won’t try to; there’s a bit more noise evident at the high ISO level, particularly on the edge of the table, but that might also be the slightly higher exposure.
Anyway, the conclusion is basically the same as in the previous post: modern DSLR cameras are pretty darn cool.
Source: http://scienceblogs.com/principles/2015/11/19/080366-iso-revisited/
