Hey Photo lovers, I might be purchasing the Canon EF 85mm f/1.2L II. I wanted your input on that lense or should I buy the Sigma 85mm 1.4 ART or another alternative? I have the Canon 28-135 macro kit lense that came with the 7d. The Canon 16-35 f2.8 II and the canon 70-200 f4. I want a good portrait lense. What do you think?