Installing Documentation Accessories - Leica M844 User Manual

Preparation before surgery
Documentation port
The documentation port of the 0° assistant's attachment has a
diaphragm for optimizing the depth of field.
1
1 Rotary ring
2 Closed
3 Open
You can adjust the diaphragm by turning the rotary ring (1).
X
If you are working at a large magnification, you can increase
the depth of field of your videos or images by reducing the
diaphragm opening.
Reducing the diaphragm opening can affect the red
X
reflex in the video image.
Focusing the 0° assistant's attachment
Rotate the fine focusing knob (4) to focus the image seen by the
X
assistant accurately.
30
7.6
2
3
Fitting the phototube
Please refer to section 10.3 for a list of video accessories.
4
M844 / Ref. 10 713 294 / Version 01
Installing documentation
accessories
WARNING
Risk of injury from parts falling down!
Complete all preparations and adjustments on the
X
optics carrier before the operation.
Never rebalance or re-equip the optical components and
X
accessories with the instrument over the operation area.
Before re-equipping, always lock the swing arm.
X
Check that the optical components and accessories fit
X
well and are fastened securely before the operation.
Before changing equipment during an operation, swivel
X
the microscope away from the operation area.
2
1 Adjusting the magnification
2 Focusing knob
Fasten the phototube to the documentation port of the 0°
X
assistant attachment or to the beam splitter.
Secure the camera, complete with adapter, in the phototube.
X
Tighten the clamping screw.
1