Canon 50mm 1.2 vs sigma 50mm 1.4: older expensive l-glass, or newer future tech

[bchernicoff]

Roger at lens rentals has opinions on these lenses that you might find useful. Apparently both the Canon 1.2 and Sigma have AF quirks that fall into repeatable patterns.

See Roger's Take:

Canon 50mm 1.4 : http://www.lensrentals.com/rent/canon/lenses/normal-range/canon-50mm-f1.4
Canon 50mm 1.2L : http://www.lensrentals.com/rent/canon/lenses/normal-range/canon-50mm-f1.2l
Sigma 50mm 1.4 : http://www.lensrentals.com/rent/canon/lenses/normal-range/sigma-50mm-f1.4-dg-hsm-for-canon