G6 vs newest sensors: Real difference in high ISO noize

Started 9 months ago | Questions thread
Ulric
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Re: G6 vs newest sensors: Real difference in high ISO noize
In reply to arbuz, 9 months ago

arbuz wrote:

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?

I would be surprised to find even a single sample on Imaging Resource where same lighting, same ISO setting and same aperture results in anything close to a 2x difference in shutter speed. You can see for yourself here:

http://www.imaging-resource.com/IMCOMP/COMPS01.HTM

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