Originally posted by thibs There's no point in yet another crop. Stay with APS-C or go Full Frame.
Rest is mess.
Yes there is. I was very sceptic towards APS-H too, but these are the points that convinced me:
DA lenses are usable on APC-H. Which means there is no need to develope almost a whole new lens lineup. And for the users there's no need to buy a whole new set of lenses.
SR is easier to implement.
This really fits into the more-bang-for-the-buck concept which Pentax is known for. Moreover, this will generate more revenue for Pentax.
The classic Pentaxian doesn't have the money for canikon FF's, so they probably don't have money for a Pentax FF either. But this way, there's a lower cost, body-only upgradepath for the poor Pentax hobbyist in which they don't even have to buy lense-sets.
In short, I think currently it's easier to build a businesscase for APS-H, then for FF.