I like the reaction of "ignore" everytime we dump some pure truth on the table. They've released the 15-30 (reuse from Tamron), 24-70 (reuse from Tamron), 70-200 (likely Ricoh design), 150-450 (likely Ricoh design), now if they have resources working on optics, I was hopping for some wide angle release from Ricoh this year, especially because we've already seen photographs with some prototypes of prime lenses.
---------- Post added 02-06-16 at 14:14 ----------
Originally posted by monochrome I have to ask; precisely what complete kit and capability will satisfy your needs?
Same as Rondec once mentioned, the 15-30 is rather large and expensive, I like the DA15 ltd size so much (except its field curvature), a wide angle prime sharp f4 full frame image circle priced <=$1K with filter thread allowing common filters would be perfect. For the 15-30, first it's expensive, second a special fixture is needed to mount filters on the front element, third it's big, fourth it's likely not as good as a prime. Medium size affordable wide angle prime for K1 wanted. I replied abruptly to adam's answer, as this year I already spend a bunch on money on Ricoh gear and this must stop :-), I don't want to spend 10K on FF camera gear. But maybe maybe, in order to afford the DFA15-30, I could try to print €100 banknotes photographed with K1 with 100 macro in pixel shift mode.