I'm a lurker here, not sure if I've ever posted before. This has been a great thread.
I'm an amateur. I'm the guy that unemployed friends go to for cheap wedding, graduation & prom photos. I like taking landscapes, just walking around with my camera. I aspire to walking pieces of the Pacific Crest trail with my camera. For me, this is fun, a hobby, not my living. On the table in front of me in my mancave are my original 1978 K1000 (did some B&W with it just last winter) and my K-5. I really like the K-5, and from what I read the K-3 is even better. I've got a pretty nice set of old glass, including the K135 f2.5, K30 f2.8, M85, and FA 100mm f2.8 macro (which I love). The K100D that got me started in digital is with my daughter at college (playing the starter role the K1000 played for me), and I just bought a K-30 for my spouse. Finally got rid of my 645n & lenses last year, after about 8 years of playing around with medium format.
There are things I like about the APS-C format, and I love the Pentax in-camera shake reduction... but there's just something about full frame that I miss with APS-C, and I'm not sure I can put a finger on it. Some of that might just be that I'm cheap and I'm working with the old glass.
I'm looking to upgrade sometime in the next couple of years, and I hate to say it, but I'm not sure I'll stick with Pentax. A quick look on ebay tells me I can get about $2000-$2500 for my current Pentax gear. If the K-FF is a dud, my upgrade could be a D750 or D800 & you could find my K30 f2.8 with original case and lens hood on the auction block. So I guess you could say that I'm Ricoh/Pentax's target market - the guy who's invested in Pentax, but could easily jump ship.
On to the question of the thread -
What will make ME buy the new K-FF?
1) I have to have the money.
But I just did my taxes, and that's looking good.
2) It has to be roughly equivalent to at least the D750. I know there will be some items where it's better, some worse, but again, roughly equivalent. I'm not too concerned with mp, although I'd love 36mp. I don't need 50mp, that would just let me take more crappy pics but now with higher resolution!
3) It has to be something that gives me faith that Pentax will still be here - and growing, and taken seriously by the industry - in five years.
4) It has to inspire companies like Sigma to start fully supporting full-frame K-mount lenses. Please, give me the 24mm f1.4!
If the K-FF wasn't too much heavier than the K-5 that would be awesome, but heavier isn't a dealbreaker. Better video would be nice, but I've already got a Canon HFM300 with shotgun mic which does a really good job & is pretty easy to use.
I've been impressed with the route taken by Ricoh so far. I'm hopeful that by this time next year I'll be testing out my new K-FF camera.