Was Sonys Best 50mm Lens Made by Zeiss?

Back in 2013, I finished my review of the Sony Zeiss 50mm f1.4 lens for A mount. This lens, at least to me, came oddly late. At the time, I was transitioning fully away from DSLRs and instead to mirrorless cameras. In fact, I mandated to the staff that we'd only be testing DSLR lenses adapted to mirrorless camera bodies - if we tested them at all. Something about this lens was really, really special. For starters, I stated that it focused faster than nearly any 50mm f1.4 lens that we'd t...