Originally posted by ogl
What is it? It's only one photo where we can see it.
I assume the XS line of lenses stands for "Extra Short", but as far as that hole goes.... it could be for a sensor for future SLR's to ID the lenses.
If we are going to see a subset of lenses which are nominally K mount, but which won't work on certain cameras, there must be a way
to detect them before they cause damage. IF all the contemplated 'rear protrusions' will mount but just will lack space for the mirror
to operate, a software protection could be included in SLR software packages that keeps the camera from working when an offending lens
is detected. If they make a lens that protrudes so far that you smash the mirror just trying to install it, then we will probably have a lot of broken mirrors.