In the Jan 2010 issue of AC, Shane Hurlbut, ASC mentions that when he switched to Panavision Primo lenses (from still ones) for shooting on the Canon 5D mkII, he got an extra stop and a half of latitude on either end. That's 3 more stops total, just from the lens! (9 stops with still, 12 stops with Primo.)
How is that even possible? I always looked at lens differences in terms of sharpness, color reproduction, breathing, stuff like that; but I had no idea different lenses had different dynamic ranges. What are other people's experiences with this? Do you have go-to lenses for maximum dynamic range?