Leica OH4, Service Manual, Page: 166 / 264

Preparation for operation
24 Leica M525 OH4 / Ref. 10 714 367 / Version -
Setting the eyepiece
Determine/set the diopters for the user
The individual diopters can be adjusted continuously for each
eyepiece from +5 to -5. Only this method will ensure that the
image will stay in focus within the entire zoom range = parfocal.
The treatment microscope ensures a high degree of fatigue
resistance when the diopter setting is correct for both eyes.
A parfocal adjusted microscope ensures that the assis-
tant´s view and monitor image will always remain
sharp.
➩
Set to the minimum magnification.
➩
Place a flat test object with sharp contours under the lens at
working distance.
➩
Focus the microscope.
➩
Set to the maximum magnification.
➩
Focus the microscope.
➩
Set to the minimum magnification
➩
Without looking into the eyepieces, turn both eye lenses to
+5 diopters.
➩
Slowly turn the eyepieces towards -5 individually for each
eye until the test object appears sharp.
➩
Select the highest magnification and check the sharpness.
This procedure has to be performed only once for each
user. The acquired values can be stored for each user
on the "User Settings" menu screen under "Tube
Settings" (see page 51).
Adjusting the pupillary distance
➩
Rotate the eyecups up or down until the desired distance is
set.
Eyecup
Rotary ring for adjusting
the diopters
Checking parfocality
➩
Place a flat test object with sharp contours under the lens at
working distance.
➩
Zoom through the whole range, observing the test object.
The image sharpness must remain constant at all
magnifications. If this is not the case, check diopter settings
of the eyepieces.
Installing documentation accessories
Fitting the Leica 2D
See user manual Leica 2D (10708979).
Fitting the photo/TV dual attachment
➩
Install the dual attachment on the beam splitter.
➩
Equip the video camera (1) with the TV objective (2) and insert
into the dual attachment.
➩
Tighten the clamping screw.
➩
Loosen the clamping screw and engage the video camera
until it engages in one of the 45° increments depending on
the available space.
➩
Tighten the clamping screw.
➩
Equip the photo camera (5) with camera adapter (4).
➩
Screw the photo lens onto the camera adapter (4).
➩
Fit the camera to the dual attachment.
➩
Tighten the clamping screw.
1 Video camera
2 TV lens
3 Adapter M600 to M500 interface
4 Camera adapter
5 Photo camera and photo lens
The object image at the camera output is laterally
reversed!
1
2
5 4 3