Originally posted by Art Vandelay II Only problem there is concern to DOF. APS-C 50mm does not = 75mm full frame in that regard. Given, a 50mm f/1.4 is plenty shallow for portrait use on an APS-C camera, but too much DOF does become problematic on wide angles. My personal favorite lens is still the humble 50mm f/1.4, first off Pentax doesn't even have an equivalent for APS-C. Secondly, they'd need to make something like a 32mm f/1.2 to equal the basic 50mm/1.4 in FF land (that would make up for the extra ISO stop and DOF). A 32mm f/1.2 would be ridiculously expensive, and probably even larger than a FF 50mm/1.4. Besides, I already own a 50mmf/1.4, paying $800+ for a 32mm/1.2 would wipe out all the cost savings of buying an APS-C camera in the first place.
I'll probably end up getting a K7 because it checks enough boxes for me, but still, I won't be happy with it and I'll still be watching all the rumor sites waiting for a FF Pentax or even a digital version of the Nikon F3.
It may eventually just come down to the *lenses.* One thing about APS-C that I love is that actually the short tele FOV's I prefer basically still have normal-lens DOF's (perfectly workable for me, actually. ) ....which means a smaller package for 75 percent of my shooting... Money could get a 31 Limited, which'd be the wideish normal which is my preferred way of doing fifteen-to-twenty persent of the rest. And smaller than my big Sigma 28/1.8. Huge to present any subject with, but all in all, the combination's a lot lighter than the 35/2, 50 1.2, and 85/1.8 I carry for Canon FD.
Puts the speed where I need it most, too. If they'd just find a way to really magnify that APS-C *finder* and really dial in the manual focus, I might not even really *want* to switch if the workable high-ISO gap closes.
What Pentax *really* needs to do next is fast normals: maybe 'true' normals: an affordable/small DA WR one, say: a 30 1.8 or a re-clothed 35/2, (Do the same for the FA 50, while they're at it: that ain't broke) and like a DA* 28/ 1.4. Bing.
If I were a big wide angle fan, I'd be screaming for FF just on the size of lenses, though.
I can have a 21 Limited that'll be the out-of-my-blessed-way-till-I-ask little utilitarian wide, sharpness, please, (Niceness *is* nice. Usually if I go that wide, it's either cause it's the only way to get the angle, or cause I'm actually having a moment. Then I want preeeetty.
....only thing that bothers me is that they cost. (Maybe a non-Limited version would help there, too. )
Sometimes I do think the Internet 'Bokeh Competition' thing seems pretty out of hand, these days. (I do suppose it's more prominent on a computer screen, admittedly) Nice to have, but: I have a 50 1.2 for my old Canons to nail my point of focus in the dim, not cause I routinely run around sticking 50mm lenses, wide open, in the faces of unsuspecting people aiming for just that one eyelash or anything.