Originally posted by normhead Ya, but practically, that's pretty much irrelevant, since K-3 pixel density is not available on an FF. The fact that an FF with the same pixel density would have the same reach, but more of it, will only become relevant when one becomes available. For right now, it's a theoretical concept with no practical application.
I could also say my wide angle needs are met by my Sigma 8-16 and DA 10-17, but I wouldn't want to muddy the waters with statements that would lead people to believe equivalence exists as more than an extremely imperfect guideline. I do find it annoying when people imply an FF can outperform an APS-c in the short end, but ignore the APS-c advantage in the long end. In real life, often when you get something, you lose something else something else.
Again, these are practical not theoretical limitations. You can discuss what's theoretically possible until you're blue in the face, and not learn single useful piece of information.
Well, the gap is pretty close and for quite a while D800 had a crop mode roughly equal to what Pentax flagship brought. That is why the tele side is harder to make statements for than the wide end.
Originally posted by LFLee Ricoh FF GR is more realistic than Pentax FF DSLR.
Well, Sony tested the waters with the RX1. The fixed lens road is safer as you don't have to gamble a complete system.