1-Sigma improved a lot their 70-200 adding stabilization, but the introduction price was quite high...tamron ha to add ultrasonic motor and improve the construction, so u can expect a low price; 1200$ at least after a while and the quality wont be like the 70-200 II
2-Maybe the stabilization wont be effective in macro, but you can use it as a medium tele, so the stabilization will be useful
I DO look fwd to a thorough testing of the new stabilized Tamron.
as it is, the Canon v2 is peerless, and the main reason I haven't sold my 5D2 body. That lens totally kicks on FF.
yup, non-macro use is about what that stabilization's good for. tho I find that's not often a FL I make much use of outside of studio-type shots.
I actually just ordered the Sigma 70mm macro in F-mount. An older lens but reviews of it show it to be extremely sharp so I want to see how it performs on my D800e for a variety of subjects.