-Ultrasharp, especially at f/1.2
-Excellent build quality (made in japan)
-Excellent image quality
-3 aspherical, 1 UD elements and Air-Sphere Coating
-Unlocked the "high speed display"
-Auto-focusing was very quick, quiet and 100% reliable! (at f/1.2 perfect focus accuracy)
-Lens Control Ring
Upgrade from EF 50mm f/1.2, the RF 50mm f/1.2L, bests the EF version in almost every regard. If you really love the 50mm focal length and f/1.2 aperture, then you need this lens in your life