Leica Z16 APO, Руководство пользователя

Страница: 32 / 48

32 Leica Z6 APO A & Z16 APO A – Operation
3.6 Working with a binocular tube
The Y tube allows you to use zoom systems with
the binocular tubes and trinocular video/photo-
tubes of the Leica M stereomicroscope line.
Please refer to User Manual M1-105-0 for
adjusting the individual settings such as eyebase
(interpupillary distance), viewing angle, eyecups,
eyelenses, eyepoint, etc.
3.6.1 Adjusting diopter settings
The observer can compensate for any vision prob-
lems by making adjustments to both eyepieces.
For this purpose, the eyepieces are equipped with
adjustable eyelenses which can be operated with
knurled rings. The dioptric values can be read
from +5 to –5. Each observer needs to set his or
her dioptric values only once.
The correct setting is necessary so that the
adjustment remains constant for zooming (parfo-
cal). Once the setting is correct, you no longer
have to refocus when zooming.
Procedure
Set up zoom system with focusing drive (9.8) or
motor focus (keys F+ and F–, at the UMC) at the
working distance (9.5) of the objective used
(see p. 45).
Set the eyebase (interpupillary distance) (9.1).
Fully open the iris diaphragm with key I on the
UMC handheld controller.
Set the eye lenses (9.2) to 0.
Set the lowest zoom position with key Z– on the
UMC handheld controller.
Illuminate a flat test object with sharp contours
using transmitted light or incident light and
focus it using the focusing drive (9.8) or motor
focus.
Set the highest zoom position with key Z+ on
the UMC handheld controller.
Optimize the image sharpness with focusing
drive, fine (9.7) or motor focus.
Rotate the eye lenses (9.2) as far as they will go
in the "+" direction without looking into the eye-
pieces.
Set the lowest zoom position with the key Z– on
the UMC handheld controller.
Individually set the image sharpness for each
eye by rotating the eyelens (9.2): For example,
first observe the specimen with the left eye,
while closing the right eye. Rotate the eyelens
(9.2) slowly in the "–" direction until you see the
test object in focus with your open eye.
Now close your left eye and adjust the eyelens
(9.2) for the right eye.
Set the highest zoom position with key Z+ on
the UMC handheld controller.
If necessary, use the focussing drive (9.7) or
motor focus to fine-focus again.
Set the lowest zoom position with the key Z– on
the UMC handheld controller.
Check sharpness and parfocality: Slowly zoom
to the highest zoom position using the key Z+
on the handheld controller.
The image sharpness will now remain con-
stant at all magnification levels, without the need
to refocus with the focusing drive. If this is not the
case, repeat this procedure.