Hi, which online shop from HK would that be? Can share?
-Agree with evil, get Sigma 17-50 than the Tamron for Sigma HSM. Conventional noisy slow motor...
-Sell your 55-250 for the 70-200, f4 or f2.8 depends on your budget/needs/size/traveling alot with it?
-After awhile, you find that...