Leica Biosystems M80 - Manual (Page 33)

Leica M-series User Manual 33
Adjusting the Resistance of the Focus Drive
Adjusting the resistance
Is the focus movement too loose or too tight?
Does the outfit tend to slide downwards? The
resistance can be adjusted individually depend-
ing on the equipment weight and personal
preferences as follows:
1. Grip the outer drive knobs with both hands
and turn them towards each other until
the desired resistance is reached during
focusing.