Originally posted by NeverSatisfied So I don't know why an extra 4mm and HSM seems to be worth double what I paid for the Tamron? I just know it's a matter of time before I own this lens. I've got too many already, somebody talk me out of it!
Because HSM makes it quieter and faster?
Besides, we need someone to test it against a good copy of the Tamron 28-75 so I...err...we know whether it's worth the extra money
ok, so really, I went through 3 bad copies of the Tamron before giving up on it, so it'd really help if you could compare them rigorously so I know whether to keep going w/ Tamron roulette or try Sigma roulette