I have the EF 50 1.4. Great lens. However for a bit more I hear really good things about newSigma 50 1.4. The Canon EF 50 is very sharp from f2.0 on out. If you cannot tolerate a softer look at 1.4 (wide open) I highly suggest the Sigma. At dpreview.com you can do a side by side MTF chart comparison of the two. Remember, the EF 50 1.4 has been around for a long time. The Sigma is designed with coatings specialized for digital sensors. If I was buying a 50 1.4 for the first time, I'd have to go with the Sigma.


My2Abes