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Leica DM100 User Manual 35
General Maintenance (cont.)
Ϙ The lower magnification objectives have
fairly large front lenses and can be cleaned
with a cloth or lens tissue wrapped around
a finger and moistened with window clea-
ner.
Ϙ Cleaning 40× and 100× objectives requi-
res more care. To attain the typical flatness
for objectives with higher magnification,
the objective has a small concave front
lens with a very small radius and slight
curvature. The surface of this front lens can
be readily cleaned with a toothpick covered
with a cotton tip, or with a small cotton
swab. Wipe the front lens lightly without
applying undue force or scrubbing action.
Make sure that the cotton tip contacts the
concave lens surface. Check the objective
with a magnifier after cleaning.
Illumination
Ϙ The Leica DM100 uses an LED illuminator.
Therefore, no lamp changing is required for
the entire life of the microscope.