Roger Hicks
Veteran
You'd be less baffled if you'd concentrated on taking pictures for a few decades and had built up a big collection of lenses in a particular mount. Swap systems every few months and no, you won't see the relevance.We are in a golden age for small cameras. I have to admit: I am baffled by the obsession with "full frame," particularly when we have so many fast light µ4/3 and APS-C cameras that offer IQ equal or better than a D700: Panasonic, Fuji, Samsung, Olympus, Sony… David Alan Harvey is shooting with an X100S and says the file quality is comparable to FF. He shoots with that and GX1/GF1. That of course is what the lab tests say, too. But this is a renowned working photographer taking his files under field conditions. And he is printing his pictures BIG for gallery exhibition. 48" long edge is common for him at this point.
Moreover, we're perhaps a year or two away from APS-C sensors that equal a D800 or 5DIII.
Cheers,
R.