The 50mm F1.2 ais continues to blow me away with its performance. This lens is a sturdy beast, and a reliable one at that. I find myself in the minority that actually likes the donut bokeh and odd almond shapes produced by out of focus lights. You need to love your lenses and learn about their qualities and what they like and do not like. For example, my 50mm F1.2 has made it very clear to me that it does not like daylight photography. It drags it’s feet and resists the daylight shots. Take it out for available light photography at night though and it sings.