On Mon, 24 Dec 2018 10:24:54 +0100, Alfred Molon
wrote:

Would have to dig it out, but a while ago on DxOMark there was a chart
claiming that ISO 64 and ISO 200 on the Olympus E-M1 Mark II in fact are
the same ISOs.

Are you thinking of this?
https://www.dxomark.com/Cameras/Olym...--Measurements

But the exposure time at ISO 64 is three times the exposure time at ISO
200, so clearly what DxOMark post is nonsense.
--

Regards,

Eric Stevens