Technical data

85
Leica M lens design
The Leica M lenses are equipped with a fixed ring
with an index for setting the distance, an align-
ment button for changing the lens and the depth
of field scale (17), a rotating focusing ring (18) and
an aperture setting ring (19) with associated
white index point (20).
The focusing ring
The focusing ring (18) shows the distance set and,
in conjunction with the scale (17), the depth of
field range. For details on focusing, see the "The
rangefinder” section on page 94.
17
18
19
20