Tamron has a close association with Sony,and did with Minolta as well (A fair number of later Minolta AF lenses were rebadged Tamron's, including several of their high-end lenses). Considering that Sony is the current producer of Minolta AF mount cameras Tamron releasing Alpha mount lenses is a given. The only surprise with the Tamron 17-50 f2.8 being released in Minolta Mount is that it was released as a Tamron instead of a Sony.
-Adam Amita Guha wrote: > I have recently become frustrated by the fact that a couple of > third-party lenses I like are not available in Pentax mount. > Yesterday, I emailed Tamron to ask them if their 17-50 f/2.8 would > someday be available for Pentax, and they said no. When I wrote back > to ask if they would consider releasing one if they got enough > letters, they wrote back and said that the Pentax market would have to > pick up "tremendously" in order for them to release the lens in that > mount. > > I'm confused by two things here. > > 1) the lens I want is the cropped version of their 28-75 f/2.8, a > superb lens which is available for Pentax, and I told them that > > 2) They released this lens for MINOLTA, which has, what, three users? > > For some reason, this episode is really sticking in my craw. I realize > that I should have a better reason to want to switch systems (need a > more capable body, etc.) but it's very tempting right now for me to > start thinking about building a Canon system when Nate has a spare 20D > that I can use. > > And then there is the fact of Pentax' slow R&D, but that hasn't > bothered me too much yet since I've been pretty happy with the *istD. > > I probably wouldn't abandon Pentax completely, at least not at first, > but I'd probably start slowly with a couple of C*non-mount lenses I > like. > > Has anyone else has made the jump this way? And am I overreacting? > This is the first time I've given serious thought to switching. > > Thanks, > Amita > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

