I shoot mainly portraiture / glamour. The longest lens I have is the 24-105 but I'm not thrilled with it for portraiture so my go to lens is my 85 f/1.8. OK technically my longest lens is the 70-300 but it sucks for portraiture and I never use it.
I need something longer. I've rented the 70-200 2.8 II a couple times and it's beee-you-ti-ful. It's also a beast. I don't mind the weight so much, I'm a big guy, but it takes up a ton of space. It's also expensive. The 135 is attractive because even though I've never shot it, people rave about it for portraiture, it's less expensive (and currently has a $100 rebate), and due to size I could make room for it in my bag much easier.
But the problem with the 135 being cheaper is that it really wouldn't be. If I got the 135 then I'd probably get the 85 f/1.2L next. Even though my 85 f/1.8 is good, it's not as good as the 1.2 so inevitably the 85 f/1.2 would be next on my list because the 135 will be too long for some situations and dropping back down to my 85 f/1.8 is going to be a disappointment after getting used to the 135. But if I got the 70-200 I probably would *not* buy either the 135 nor the 85 1.2, at least not anytime soon; The 70-200 would cover me. So in the end, 135 + 85 f/1.2 = more $$$ than just 70-200 f/2.8 II.
So that brings me back to size. The best lens is the lens that I have with me, and I fear that if I got the 70-200 I may not always have it just because it's so damn big. I was at my sons school music concert the other day and I could have used something longer than my 24-105. Obviously the 70-200 would get the job done but I'm not sure I want to be sitting in the audience with it next to soccer moms taking pictures with their iPhones and attracting attention. My wife probably wouldn't even let me. The 135 would be much more inconspicuous here.
Man, tough choice, pros and cons either way. What's everyone else think?








