Leica M165 FC, User Manual

Page: 78 / 160

Leica M Series User Manual Eyepieces 78
All Leica eyepieces are also available with built-
in dioptric correction, allowing the microscope
to be used without glasses even by those with
vision problems. The correction comprises ±5
diopter settings. Using the dioptric correction
1. Set the dioptric correction of both
eyepieces to the mid position ("0" diopter
settings).
2. While wearing your glasses, look through
the eyepieces and focus on the specimen.
3. Rotate both eyepieces to the maximum
value of "+5".
4. Hold one eye closed and rotate the other
eyepiece in the "-" direction until the speci-
men appears sharp.
5. Then, open the other eye and correct the
diopter settings until the image is uniformly
sharp.
Note that when using dioptric correction,
the advantage of parfocality is lost – thus
you have to manually refocus each time you
change the zoom level. To also use parfocality
with dioptric correction, refer to the instruc-
tions on page 79.
Dioptric Correction