G6 vs newest sensors: Real difference in high ISO noize

Started Mar 5, 2014 | Questions thread
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arbuz Senior Member • Posts: 2,247
Re: G6 vs newest sensors: Real difference in high ISO noize

texinwien wrote:

Electriq wrote:

I think this kind of plot is useful (if real ISO is measured correctly). Because if you compare two cameras in real conditions, on the same conditions with the same scene lightness, lens f setting and exposure G6 will set ISO 6400 and E-M5 ISO 12800 which corresponds to real 6400.

That is incorrect. If the G6 sets ISO 6400, the E-M5 will also set ISO 6400 (or something very close to it, assuming all else remains equal).

Or alternatively, if we set ISO 6400 on both cameras, the exposure on E-M5 will be 2 times longer.

That is also incorrect. If we set ISO 6400 on both cameras, the exposures will be roughly equal on both cameras, again, aotbe.

Looking at samples on imaging resource I would say you're incorrect and electriq is right. Do you have anything to support your version or you simply speculate?

Also, if you're right, Oly should have exceptional DR (since by default it loses 1EV by brightening up), however this is not supported by any evidence.

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