Originally posted by ogl Pentax K-01 review - YouTube
PAY ATTENTION - HOW DEEP MOUNT HOLE....
I think the idea of K-01 is new line of super small lenses with K-mount. Not to make the smallest body, but smallest lenses...
Wow, and all you have to do is buy all new lenses to take advantage of it... Thus negating mount compatibility.
The idea only works if you're forced to re-buy focal lengths, in lens that are small system only, since the intrusion will make them a no go on anything with a mirror. So in exchange for avoiding an adapter (yay!), you've welded an extension tube on to the body (um, I guess yay?), which pretty much raises the cost of entry for anyone contemplating a switch from another brand (boo!).
Awesome marketshare building.
People can keep coming up with magical ways that this makes sense, but it really doesn't. A NEX7 with their 16mm pancake mounted is darn near the depth of a K-01
body; good luck making a lens so deep in makes the host body thinner. At any given focal length you've given up a couple cm before you've even started, and now you have to jump through hoops tucking parts of the lens inside the body just to hold ground, let alone trying to have a smaller overall package.