Hi everyone - thanks for all your input. I guess I'm venturing into primes wanting to not be lazy with my zooms, be more creative and after better IQ in lower light situations, shallower DOF etc. I know I have some great lenses, but I can get some of these lenses at great prices very soon & didnt want to pass up the opporunity.
I guess I was referring more to bettering my street photography, candid people shots (more candid people shots than actual posed portraits), so possibly the 35mm and 85mm would be good options.
Ive heard that there can be issues hand holding the 135mm re sharpness, any truth to that ? Ive read that people go with the 100mm with IS instead, but is this lens primarily for macro (which I dont do a lot)
Also the 85mm 1.2 may not be worth the extra money due to bulk especially when the 1.8 performs nearly as well ?
If by "candid" you mean photographing people who aren't aware you're taking their photo (or who you hope won't notice), you may be better off with greater distance - 35mm would likely be too short; 85mm may be too; though this depends in part on what the environment is: how much available space there is, how crowded the scene is, etc. Very fast, accurate AF helps in such situations too, which would likely rule out the 85L and, if you're likely to be changing the distance from your subject a great deal, maybe the 100L wouldn't be ideal either (wonderful though it is in every other way). AF on the 85 1.8 and 135L is very fast and accurate (same for the 100 f2, apparently, though I've not used one); the 85 1.8 and 100 f2 have the additional advantages of being small, relatively inconspicuous, light and inexpensive. The main flaw of the 85 1.8 is purple fringing, but the 85L is at least as bad (though it has a "look" the 85 1.8 can't quite match). I probably use a fast 50mm more than any other prime, but I don't know what I would recommend there for use on Canon (the ones I use are all cheap old MF lenses that I use on Sony mirrorless bodies).