Leica Used Leica Brightline Finder M-24 for 24mm M
This Leica Brightline Finder M-24 is a viewfinder for 24mm M lenses. The finder provides a remarkably vibrant, high-contrast image. Due to a concave mirror in the optics, part of the incoming light is used to illuminate the picture outline as a bright frame. This is the same as in viewfinders of Leica M