By my count, I have used (borrowed, rented, owned) 18 EFS and EF compatible lenses including 6 L-series lenses. I do own the 50mm f1.4 canon lens. The lenses that I have found to be superior in contrast to the 50mm f1.4 include the macro lenses I have used (EFS 60mm, EF 100mm f2.8, and EF 100mm F2.8L), and the best IQ Canon lens I have used which is the 200mm F2.8L mk1. My copy of this lens has clearly superior contrast and sharpness on my cameras (30D, 60D, 5D) to all other Canon-compatible lenses I have used (I have never used any of the big white primes).