4
Magnification Chart (illuminated models)
Objective
Eyepiece
WF10X
(supplied)
WF15X
(optional)
Maximum
Total
Magnification
Field
Size
Total
Magnification
Field
Size
Working
Distance
Specimen
Height
2X
20X
10mm
30X
6.5mm
65mm
58mm
3X
30X
6.7mm
45X
4.3mm
55mm
60mm
4X
40X
5mm
60X
3.3mm
40mm
60mm
Magnification Chart (non-illuminated models)
2X
20X
10mm
30X
6.5mm
75mm
57mm
ILLUMINATION
1. If your model is not supplied with built-in illumination, it should be used where adequate natural or
overhead light is available.
2. If your model is supplied with a port to accept an optional penlight illuminator, you can operate your
microscope without this penlight illuminator, or you may elect to purchase optional #903 penlight
illuminator (requires 2 each AAA batteries, not included).
To install optional #903 penlight illuminator:
a. Remove chrome lamp holder and lamp assembly from body of penlight by rotating lamp holder in
a counter-clockwise direction. Remove white plastic tube from penlight (discard white tube) and
insert 2 each AAA batteries into body of penlight (positive terminals facing up toward lamp).
Replace chrome lamp holder and lamp by screwing tip in a clockwise direction.
b. Insert penlight into black rubber-lined friction mounting port located immediately behind head of
microscope.
3. Determine whether the black or white side of the stage plate will provide best contrast with the
specimen to be viewed. The white side will be used for most viewing. It will always be required when
viewing transparent specimen slides because it better reflects light through specimen slide.
To reverse black/white plate, loosen locking set screw located at front of base with “L” hex wrench
provided. Insert plate with selected surface facing up. Tighten locking set screw.
4. If your model has top (incidental) illumination only, select and position plastic stage plate as described
under “3” above.
5. If your model has both top (incidental) and bottom (transmitted) illumination:
Three switches are on top of base: (1) main power on/off, (2) “I” switch controls incident (top) light,
(3) “T” switch controls transmitted (bottom) light.
This model is furnished with two stage plates. The frosted glass plate is used when viewing
transparent specimen slides or for viewing some specimen thin enough through which light can pass
(insect wings, etc.). On this model, locking set screw is located on one side of base.
FROSTED GLASS PLATE MUST BE USED IF USING BOTTOM ILLUMINATION. HEAT
GENERATED IN BASE FROM BOTTOM LIGHT WILL WARP OR DAMAGE THE PLASTIC
