Focusing Tension; Focusing - Accu-Scope 3002 User Manual

ADJUSTMENT
& OPERATION
Fig. 16
®
ACCU-SCOPE
(continued)
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3002 MICROSCOPE SERIES
Adjusting the Focusing Tension
The tension of the coarse focusing knob has
already been factory adjusted. If the handle is very
heavy when focusing or the specimen leaves the
focus plane after focusing or the stage lowers by
itself, adjust the tension adjustment collar
16) .
NOTE: Rotate the tension adjustment collar
toward the front of the microscope base and will
tighten the coarse focusing knob.
Adjusting the Focus
To ensure that you obtain sharp images with both
eyes (since individual eyes vary, especially for
those wearing glasses) any eyesight variation can
be corrected in the following manner: set both
diopter collars to "0".
Using your left eye only and the 10X objective,
focus your specimen by adjusting the coarse
adjustment knob ① (Fig. 16). When the image is in
view, refine the image to its sharpest focus by
turning the fine adjustment knob ② (Fig. 16).
Rotate the diopter collar to obtain the sharpest
focus.
To obtain the same sharp image using your right
eye, do not touch the coarse or fine adjustments.
Instead, rotate the right diopter collar until the
sharpest image appears. Repeat several times to
check.
NOTE: do not counter rotate the focusing knob as
this will cause damage to the focusing system.
③
(Fig.
14