mcoren wrote in post #18453425
What I find interesting is that they issued this press release "announcing the development" of the lens, but they say "Launch planned by the end of 2017." Have other manufacturers done this recently, i.e. announced they were developing something before they are ready to launch it?
Maybe Tamron fans have been clamoring for a lens like this from them. Or maybe they wanted to get the news out there before the holiday season gets underway.
Sigma's 4 lens release at the beginning of the year. It was several months before we even got prices on two of them. As for Tamron's wording, it seems silly since there's already images of the lens. Something I wouldn't believe would happen if it was in the planning stage.
There's 2 things I like on the Tamron's version over the Sigma's lens. One, it's a 1/3 stop faster on the wide end. And depending on when it moves to the next aperture value, it could be even more useful on the wide angle. Sigma's at f5.6 by 112mm. IF Tamron holds onto that f4.5, that'll be useful benefit to Tamron. And I'll take any extra SS I can get when it comes to moving animals. Second, there's going to be an optional tripod collar. And I like having a tripod collar. It's going to have the built in Arca mount, it'll be useful for hanging from my blackrapid strap vs all the weight on the camera mount, and I just prefer balancing a long lens in my hand on the tripod collar.