Indoors 135L on a crop camera is only good for head and head and shoulders shots.AncasterRFD wrote: ↑Curious how far back you are to get that body shot?
(to judge it's workability indoors)
You still might consider the cheaper alternative, 85mm f1.8. You'll get 1.4x less background blur (for the same framing), and somewhat worse image quality wide open, but the working distance will be 1.6x shorter, AF is as fast, and it is 2.5x cheaper new.
Photozone gives the 85mm and 135mm on a crop camera 4 and 4.5 stars, respectively:
http://www.photozone.de/canon-eos/164-c ... rt--review
http://www.photozone.de/canon-eos/168-c ... rt--review