Originally posted by FozzFoster Isn’t the unmarked button at the top left just the trash can button? So you can delete files on the fly?
The button placement on the rear of the new camera seems to very closely follow that of the K-1. In that case, that button should be the LV (Live View) button, which seems absent on the new camera, because the LV setting is moved to the top round dial.
So, it's anyone's guess what the blank button will be used for.
As can be seen below, the trashcan is allocated to the same button as before:
The real intuitive part, I think, will be the function button (S.Fn) which I imagine will be used with the scroll wheel, which will allow one-handed setting changes on the fly.