Originally posted by MJSfoto1956 I've scaled the K-3 vs K-2 to demonstrate that this new camera is quite a bit bigger than the K-3. It is much more like my Nikon D800
Assuming the scaling is correct, I would call that 'marginally' rather than 'quite a bit' bigger.
The D800 is, according to DPR and IR side by side comparisons, 1.5 cm wider and over 2cm taller
than the K3. Your image suggests the Pentax FF mock-up is scantly 0.5cm wider and less the 1cm
taller, (save for the tippy top of the pentaprism, perhaps).
I think the boxiness is really playing with the eye. Round off the corners of the mirror box and that
31mm won't look so tiny and the overall body will look less massive.