What is this fascination with iso6400?

Started Feb 11, 2013 | Discussions thread
DigitalPhilosopher Contributing Member • Posts: 999
Re: What is this fascination with iso6400 ?

Detail Man wrote:

If a camera was able to provide the same Dynamic Range and Signal/Noise Ratio over a scalar range of 16 ("ISO=50 to ISO=800"), then there would exist no seemingly sensible purpose for the cameras to even offer a setting below ISO=800.

In fact, when I wrote that message, I first typed "how about a camera that had base ISO 800"

But then I realize, there are occasions I want ISO 100, or even 50, not because of IQ considerations, but because I don't want to drag ND filters with me - and I want to use f/1.8 in daylight...

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