Thanks all, I was consider tamron 17-50 f 2.8, any thoughts of this lens?
Also tamron 17-50 vs tamron 28-75mm?
I like canon 18-135mm but I find tamron 17-50 is better in low light.
I'm mainly interested in portraits, family, walk around.
17-50 on a crop is the same as 28-75 on FF so I'd say go for the 17-50 (non VC) if you have a crop camera (which you do)