Zeiss S8, Instructions For Use Manual

Page: 80 / 148

80
Operation
G-30-1346-en S8 Floor Stand Issue 4.0
Printed on 05. 06. 2001
OPMI
®
Vario: setting the adjustment speeds
You can select the adjustment speeds for the following functions of the
surgical microscope:
– Focusing
– Zoom
– Adjustment of X-Y coupling
Changing the settings
The speed mode is the user interface where you can select the speeds of
the surgical microscope functions.
Use the "
∇
" and "
∆
" keys to change the settings in steps.
Each of the three adjustment speeds is variable in a range from 1 (min-
imum) to 10 (maximum) in steps of 0.5.
With low zoom values, optical systems have a large depth of field and the
focussing system has to cover a large adjustment range until the image is
sharply defined. The X-Y coupling needs to be adjusted within a wide
range until the position required is reached. This takes a certain time, and
a high adjustment speed is therefore of advantage in this case.
With high zoom values, on the other hand, optical systems have a small
depth of field. The focussing system has to be precisely positioned to ob-
tain a sharply defined image, and the X-Y coupling needs to be precisely
adjusted within a narrow range to reach the position required. A low ad-
justment speed is therefore preferable here.
Select the focusing speed which suits your specific work method.
Note:
The "SPEED FUNCT" function in configuration mode 2 permits you to se-
lect dynamic speed control for focussing 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.
Saving parameter settings
As soon as you have entered a parameter setting, it is saved under the
current user ID.
Path: The basic mode is automatically displayed after the instrument has
been switched on.
Press the "MODE" key to access the speed mode.
Speed mode
MODE STORE MANUAL
FOCUS
SPEED:
1.0
ZOOM
SPEED:
10
XY
SPEED:
1.0