After doing a bit a research--Have a bit of an itch to buy a L series Canon lens.
Just not sure which on.
I have 85mm f/1.8 and a zoom lens--18-200mm f 3.5-5.6-canon on a 550d body

Wondering which L LENS --- ? EF 16-35 mm f/2.8 L
EF 24-105mm f/4 L IS
or others?