Hi guys.. Just want to know what 3rd party lenses you've ever got and been happy with it. Mine, Tamron 17-50 f2.8 non-vc, Tokina 11-16 f2.8 uwa, Tamron 90mm f2.8 macro.. All of them are pretty good.. Just want to hear from you guys.. Maybe I haven't got one nice 3rd party lens same as yours.. Cheers!