New info
I am told they are indeed using a multi-aspect sensor.
It measures 18.9mm x 13mm in approx. 3:2 aspect ratio
20MP stills but the total resolution of the chip is 24MP
24MP 3:2 is approximately 6000 x 4000 (just like the Sony A6300 in 3:2 stills mode).
Then the 6K photo mode is 3:2 with full sensor readout up to 30fps burst.
The normal stills mode is a 20MP 4:3 crop of the sensor. This is why 43rumours say 20MP sensor.
The 4K video is a 16:9 crop of the sensor using the full 6K width but downsampling on the chip.
Absolutely take this is a rumour until confirmed.
But it makes total sense to me... There is *no other way* of getting 6K photos from a 20MP 4:3 sensor like that featured on the GX8.
EspenB got a reaction from Eno in GH5 10-bit 4:2:2 internal?