i asked this question in the current 30-40mm lens poll, but nobody responded yet, and i really felt like trying to get more attention for it
i only just discovered that this lens existed
Pentax Lens Review Database - 30mm F2.8
seems to be well-regarded here and the few other places i could find mention of it on the 'net. not much opinion because of its rarity.
it's a little pricey currently - there's one on eekbay for 375+ (hopefully it won't skyrocket in price now that i've brought it up).
as pentax is aware (they have a 30 on the roadmap) this is almost the perfect "normal" fl for aps-c - personal preference aside. based on the k10d's sensor (23.5 x 15.7 mm) since that's what i have, the right normal fl would be 28.26mm.
so it's a little long
BUT,
since i realized it existed, i've been thinking that the new da* might be a reissue of this old smcp-k? it somewhat matches with the recent limited series - slightly slower than super-fast aperture. and it's well-regarded enough that the optics might justify the * designation along with sdm and weather-sealing. if used manual focus k-mount versions go for near $400 how much would the da*30 reissue be? or maybe i'm crazy.
p.s. anybody who did not review this lens in the database have any experience with it?