Originally posted by Medium FormatPro I'll bet we still see both a Canon and a Nikon mirrorless that take the "full line" slr lens'. Perhaps in a response to this - that Pentax will offer another variation of the K-01 - still also accepting the full PK line without adapters. The other will in fact do it in a short order. It would be quite easy for Pentax to do updating to keep up with this one.
Well there is little sence in creating a new mount for customers that mostly only buy a kitlens and maybe down the road one pancakeprime. For such a customerbase you can't create a full line of lenses and especially when the lenses get bigger and the advantage for having a smaller camera disapears. That is for Pentax so, and also for Canon and the others. The advantage for a new line with different mount is bigger for those who create a new mount for a smaller sensor-system and thus keeping longer reachlenses smaller (m4/3th, Q and 1 series). With a big sensor that won't work. Once you need an adapter to get all out of your lenses on a systemcamera, then you might aswell just get a dslr or settle with an original mount-camera that is like K-01 (buth Canon and Nikon could do that too). Sony got into the trans Lucent to get another way of working different.
Is the K-01 a good camera? Yes I think so! Could it be improved? Well offcourse, an EVF for those who want that (not me), a FF sensor for those who would like that (count me in), more colours for those who aren'r Yellow.
Is the K-01 a succes? No I don';t think so, since I don't see camera's walking around in a city as much as other CSC's so there is still a lot to win. I don't think that the main problem for that is the K-01, but the marketpenetration for Pentax is just not strong enough to sell the K-01 in numbers large enough to make it a succes.