Originally posted by Pentaxke Why can't people except the obvious? It's neither developed by Pentax nor Tokina, but it's developped by *both* Pentax and Tokina...
Actually, that's been a pretty hotly debated topic, with some information but mostly speculation flying in all directions. But one thing is clear: it is *not* a case of being primarily a Tokina design with jut a Pentax name slapped on, as you original post implied. that's the case of the Tamron-developed/Pentax-branded 18-250, but is pretty well known to *not* be true of any of the lenses from the Tokina partnership. No one really knows *for sure* how much input Tokina had. At most, it seems it *might* have been a 50/50 partnership, but really, most of the "evidence" seems to suggest that it really was mostly Pentax . In any case, saying the lens is "really" a Tokina is just plain false - at best, it's really "part" Tokina, and while no one knows just how big a part, the evidence seems to suggest it isn't that big a part.
Quote: It happens all the time...
Indeed, and you're right - it really doesn't matter much. But since you seemed to be "dinging" Pentax for not having anything of their own design to compete with the specific Nikon zooms you mentioned, it is important to not lump the Pentax 12-24 in with simple re-badges like the "Pentax" (really Tamron) 18-250. Whatever involvement Tokina may have had, it is clearly a VERY different role than Tamron had in the 18-250. Pentax has every right to "claim" the 12-24 as their own. And while they don't make thei own 70-200, they *do* make their own 50-135, which Nikon doesn't. And if 70-200 was a standard in the 35mm film world, then 50-135 should be in the APS-C world...
The point, again, being that your initial characterization of Nikon as producing all these great zooms while Pentax has nothing in comparison was rather misleading. The 24-70 is the only one of the three lenses you mentioned where is indeed fair to say Pentax has nothing currently available that is comparable.