Originally posted by Class A From my scant reading about MF cameras, even the APS-C AF system of the Pentax MF cameras is quite advanced when it comes to what MF photographers are used to; to the extent of Reichmann and Devlin criticising the 645Z for being "too easy" to use.
Of course there are very sophisticated AF systems from Hasselblad, for instance, but it appears that many MF shooters do not expect much from AF and that the Pentax AF is considered a very welcome extra, in particular at this price point.
Hence, I'd say Pentax can be excused for not having developed a new high-end AF for their MF offerings. The market appears to allow re-using the APS-C system. I think, the same reasoning will not apply to the FF model. Here, Pentax is facing different competition.
The problem is the coverage. It doesn't even spread over the complete APS-C area, which means it is a rather center focused system for the FF, and very much so for MF.
---------- Post added 09-02-15 at 13:04 ----------
Originally posted by Class A Why isn't the USB3 connection of the K-3 used for tethering?
It would support much quick transfer of images compared to the FLUcard.
Yup. I would also like USB OTG support. Being able to plug in say an external hard drive to copy the files as a backup.