6 World Precision Instruments
OPERATING INSTRUCTIONS
Refer to Fig. 2 on page 3 and Fig. 3 on page 5 along with the following
instructions on normal operation.
1. Working Distance Adjustment–Loosen the Securing knob and the Vertical Stop
knob which secures the microscope to the post. Move the microscope to the
desired height (working distance) according to lens (auxiliary objective lens)
attached (see “PZMIII Eyepieces and Objectives” on page 9 for working
distance). Then, re-tighten the knobs.
2. Interpupilary Distance Adjustment–Looking through the eyepieces with both
eyes, adjust the interpupillary distance by sliding the two eyepiece tubes with
both hands until a single image is observed.
3. Focus Adjustment–Place a sample under the microscope, turn the Magnification
knob to its greatest setting (4.5). Focus the image by turning the Focusing knob.
Once the image is in clear focus at its highest magnification you may zoom out
to lower magnification by adjusting the Magnification knob while remaining in
focus.
4. Diopter Adjustment–If the image does go out of focus when zooming out, zoom
to the lowest setting and focus each eyepiece individually by adjusting the
Diopter Adjustment Ring.
5. Video/Photo Applications (for the Trinocular PZMTIII only)–Slide the Light Path
Selector bar* to the Photo In position in order to direct the light to the Video/
Photo port. Remove the black protective cap on top of the Video/Photo port.
Slip and secure the body of C-mount CCD camera Coupler over the Video/Photo
port, with its focus ring facing back. Attach a C-mount video or digital camera
(when using cameras with an integrated lens filter thread of 28, 37 or 43 mm,
Digital Camera Adapter Kit #501384 is required). Refer to your camera’s manual
for instructions on connecting the camera to the monitor. Focus the image on
the screen by adjusting the Fine Focus Ring located at the back of the C-mount
CCD camera coupler.
*NOTE: The newer trinocular body is a true trinocular. It may not have the Light
Path Selector switch. This microsocpe port transfers 50% of the light intensity to the
camera port without blocking the right eye piece path.