A77 25600 only because of 24mp?

Started Aug 11, 2011 | Discussions thread
John Sheehy Forum Pro • Posts: 19,396
Re: ISO 50 is good if best dynamic range there.

rinkos wrote:

ianimal wrote:

There are people with different needs.
Some want ultra high ISO with good performance.
Some want low ISO with the most dynamic range one can get.

When shooting at ISO 6400 or above the dynamic range is very poor.

thats the first time i heard of such a thing..i would like it if you can point me to where this info resides...i have not noticed any less dynamic range using iso 6400 on my A580 ...which i do quite often .

Perhaps you are confusing DR and highlight headroom. Most cameras have the same highlight headroom at all or most ISOs, but they can vary in footroom. DR = headroom + footroom.

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