The 85mm f1.2 II is my favorite and I'd be sad to give it up. I'm a concert photographer. For festivals my bread and butter lenses are the 24-70 2.8 and the 70-200 2.8 IS II. I rarely use my 24-70 though for smaller shows, mostly the 24 1.4 or the 16-35 2.8.
If you're into concert photography, feel free to follow my work at
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