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Dioptric correction and parfocality – Leica Biosystems M205A User Manual

Page 61

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Leica M series

Manual

61

Adjusting

1. Set the dioptric correction for both

eyepieces to "0".

2. Select the lowest magnification and focus

on a flat specimen.

3. Select the highest magnification and read-

just the sharpness.

4. Select the lowest magnification again, but

do not look into the eyepieces.

6. Rotate the eyepieces counterclockwise in

the "+" direction as far as they will go (+5
diopter settings).

Leica stereomicroscopes are parfocally matched.
The prerequisite for this is the correct setting of
the diopters and the parfocality. The following
adjustments only have to be carried out once
by each user.

Preparations

Move the lever of the video/phototube to

the "observation" position and open the
diaphragm.

If you are using the microscope carrier AX,

set it to stereoscopic observation.

7. Look into the eyepieces.

8. Slowly rotate each eyepiece individually

in the "–" direction until each eye sees the
object sharply imaged.

9. Select the highest magnification and refo-

cus if necessary.

Now, if you adjust the magnification from the
lowest to the highest level, the specimen is
always brought into sharp focus. If not, repeat
the process.

Dioptric Correction and Parfocality

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