So I currently have:
60D
18-200 3.5-5.6
50 1.8
Tamron 70-300 VC 4-5.6
Which is the better decision? Upgrade glass to the 70-200 2.8 OR upgrade to full frame with L glass at f/4?
I would like a setup that helps create good outdoor portraits. I know that FF offers the ability to have a shallower DOF, but then again I would be giving up the 70-200 2.8 for a 24-105 f/4.
I would really appreciate some help here. 




