Hexar lens is extremelly good , one of the best photograph I have ever seen had been published at national geographic magazine hexar ad. Carry a simple camera at fog and for other oppurtinities , stick with your camera. AF is a damn thing and I bet I can focus in a hurry , faster with a barnack.
These are old cameras with shallow electronic technology , they are what they are.
I can say only better camera lens than hexar , 5 times more expensive leitz one.
I listened from sting , londoners never run but walk , its enough for hexar