Originally posted by rawr
So even if the Pentax 70-210 were 100% built and assembled by Tamron, I don't believe it will make it a worse lens in any way than if it was 100% Ricoh assembled.
True. I believe the point some people were trying to make is that there is a price premium for the Pentax name, if the lens is 100% Tamron.
Originally posted by RobA_Oz
the fact that none of the Tamron-based lenses have been issued with a * or Limited designation by Pentax, under Ricoh or Hoya ownership (or under its brief period of independence). That, of course, could simply be the result of a policy designed to elevate the Pentax name above one of its partners
That would/could make sense.
Pentax seems awfully conservative with their brand. For instance, the 24-70 and 15-30 are extremely good lenses, certainly as good optically as the 16-50, but did not get the * label. And as another example, I discussed with a regional director last Fall and he told me Pentax did consider releasing a Ff version of the 60-250 (which many users, me among them, have happily modified for FFF). However, since they realized that the corners on FF were not exactly as sharp as on APS-C (something obvious, and to be expected, even without testing) they decided not to, because the lens "wasn't as good as it was supposed to be".
Originally posted by normhead
the current situation with Pentax using Tamron designs and making the available under the Pentax brand is a fine solution, with minimum risk to Tamron.
I believe that's the way going forward, for the short term at least.
Originally posted by normhead
But with Pentax licensing the DFA 50 1.4 to Tokina, the suggestion is, Pentax can't design lenses just for Pentax anymore than Tamron and Sigma could.
Tokina has reportedly been using Pentax designs under license for many years, so I don't think it's anything new.