Would the same lens on say the Olympus EM1 Mark1 be as sharp as on say the Pan GX7?? OXOMARK wrong?!

Small differences can be explained away. GX7 and E-PL7 cannot. They typically show half the P-MPix or only 70% of the linear resolution. 70% is extremely noticeable and renders the 75/1.8 less sharp than a so-so slow zoom. The strongest AA filter in the world does not reduce sharpness to 70%. A camera designer would be totally crazy to implement that. The shutter shock theory does not work either, as DXOMark was informed of this discrepancy a long time ago and still consistently push out this nonsense. They'd be crazy not to use the e-shutter when testing lens sharpness now.

E-PL7 esp. cannot be explained away knowing that it is essentially the same as the E-M10, with regard to lens sharpness tests. Compare E-PL7 and E-M10 on DXOMark and then pick up your jaw from the floor next.

People have posted results of their own tests to this forum comparing these cameras with others using the same lenses, and none of them showed even close to the degree of P-MPix differences in the DXOMark database. Tests show sharpness without any noticeable difference, nowhere near 70% worse.

The Occam's razor conclusion must be that DXOMark made errors.

Thought I would share this link I found on a review of the 'Panasonic Lumix G 42.5mm f1.7 lens' as it was conveniently tested on a Panasonic GX7 as well as the very expensive 20MP Olympus EM1.

When he tested the lens on the The Panasonic GX7 was no mention of any sharpness issue on the GX7.

Found quite helpful so thought would share

Link: https://www.cameralabs.com/panasonic_lumix_g_42-5mm_f1-7_h_hs043e/