Leica EZ4, User Manual, Page: 28 / 73

Leica E Series User Manual Eyepieces (Only for Leica EZ4) 28
Dioptric correction
The adjustable eyepieces for the Leica
EZ4 are also available with built-in diop-
tric correction, allowing the microscope to be
used without glasses even by those with vision
problems. The correction comprises a maxi-
mum of ±5 diopter settings.
Users with normal vision do not need adjust-
able eyepieces. An adjustable eyepiece is suffi-
cient for mild shortsightedness.
If vision is extremely poor or when graticules
are used, two adjustable eyepieces are needed.
When the diopters are regulated exactly, the
sharpness is constant over the entire magnifi-
cation range (=parfocal).
Once the diopters have been set, the procedure
does not have to be repeated. Simply restore
your diopter values on the eyepiece before
beginning work with the stereo microscope.
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.
5. Carry out steps 6 to 8 for each objective
individually.
6. Rotate the eyepiece counterclockwise
in the "+" direction as far as it will go
(+5 diopter settings).
Dioptric Correction (Only for Leica EZ4, Open Version)