[PanaDP]

It's a Leica. If the rangefinder says it's in focus, it's in focus.No need to stop down.

I'd have to see it to believe it with a 90mm at f1. I pull focus for a living and that's not much to work with unless you're doing what the navy probably was and focusing 30 feet and further a lot. At 12 feet if a person's eyes are sharp, their ears aren't. At 7 feet, a head and shoulders portrait length, you get 2" total depth of field. It sounds like a very, very expensive way to miss focus a lot to me.