Zeiss S88 Instructions For Use Manual page 103

Speed mode
Menu A
FOCUS
SPEED:
1.0
ZOOM
SPEED:
10
XY
SPEED:
1.0
MODE STORE MANUAL
G-30-1426-en
Operation
Speed mode for OPMI Vario (MENU A)
This mode permits you to set the adjustment speeds for the following mi-
croscope functions:
– Focusing
– Zoom function
– Adjustment of the X-Y coupling
Path: Every time you switch on the system, the basic mode is automati-
cally displayed. Press the MODE button to access the speed mode
(MENU A).
Adjusting the settings
The speed mode is the user interface which allows you to set the speeds
of the microscope functions.
Each of the three adjustment speeds can be set in a range from 1 min. to
10 max. in steps of 0.5.
Optical systems provide a large depth of field if small zoom values are
used. In the case of a large depth of field, the focusing system must travel
a large range until the image is in focus. This means that the X-Y coupling
must be adjusted over a large range until the required position is reached.
This will take some time. A high adjusting speed is therefore a great ben-
efit.
On the other hand, optical systems provide a small depth of field if high
zoom values are used. This requires precise positioning of the focusing
system in a small range to ensure that the image is in focus. This means
that the X-Y coupling must be precisely adjusted within a small range until
the required position is reached. A low adjusting speed is of advantage in
this case.
Select the adjusting speed for the focus as appropriate for your working
method.
Note:
The "SPEED FUNCT" function in configuration mode 2 permits you to se-
lect dynamic speed control for focusing and for the X-Y coupling as a
function of the zoom setting.
You can select a high, medium or low value for the dynamic change of
speed, or deselect dynamic speed control.
If you have already set a high adjustment speed for focusing and the X-Y
coupling in the speed mode, dynamic speed control may possibly not be
effective across the entire zoom range, as the maximum adjustment
speed is reached beforehand. For further details, please see configura-
tion mode 2.
S88 Floor Stand with Lifting Column
103
Issue 9.0
Printed on 28. 01. 2009