Viewfinder Magnifiers M
The viewfinder magnifiers 1.25x and 1.4x are simply screwed into the viewfinder ocular of the Leica M. A small chain attached to the Leica M’s carrying strap eyelet prevents it from being lost or damaged. A leather pouch is supplied for safekeeping when it's not attached.
Viewfinder Magnifier M 1.25x:
To provide major aide in framing the subject at focal lengths of 50 mm or more, the M 1.25x magnifies the viewfinder image by one quarter. This greatly enhances focusing accuracy, especially when shooting at telephoto focal lengths.
Viewfinder Magnifier M 1.4x:
Enlarging the viewfinder image by two fifths, this viewfinder magnifier is recommended for focal lengths of 75 mm or more. It also turns into magnification of 1x (0.95x with M8-Models); a combination that allows comfortable viewing of the subject with both eyes