Any big surprise from Photokina?

It's a 35mm frame. Although it may need some modification for mounting a full-frame sensor, the cavity is big enough.

I wish that those of you who think the size of the sensor determines the format size of the camera body would open your minds to the fact that you haven't got it right. If Sigma dSLRs were not 35mm cameras, you wouldn't be able to mount the lenses of 35mm film cameras on them, and vice-versa.

--
William Wilgus