Leica Black ViewFinder for 21/24/28mm lenses makes it possible to set the framing of the three wide angle focal lengths for which the camera viewfinder does not, or does not always, provide bright-line frames (28mm available on LEICA M4P, M6, M6TTL 0.58/0.72, M7 0.58/0.72 and MP 0.58/0.72). The three settings can be conveniently selected on this Leica film camera accessory using a knurled dial that can be felt and heard clicking into place. The optical performance matches the high level of the MP viewfinder by Leica, is also suitable for those wearing eyeglasses and offers extremely high magnification, giving excellent detail visibility. If the viewfinder is used without eyeglasses, the eyesight correction lenses for the Leica M camera can be screwed on to compensate for eye defects. The eyepiece is rubber coated to protect eyeglasses. The viewfinder's robust aluminium housing is available in black or silver to match the designs of the camera body.