General Brand M39 Lens to Leica M Camera Adapter (28mm/90mm Frame Lines)

Enabling the use of M39 screw-mount lenses on Leica M-mount camera bodies, this Lens Adapter is a simple interface, and automatically activates the 28mm/90mm frame lines in the viewfinders of compatible cameras. Its straightforward design maintains infinity focus and does not compromise the optical qualities of the lens.