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Protocol for the Stereo Microscope
1. Place specimen under the optical body.
2. Rotate Zoom Control Knobs to the lowest magnification.
3. Adjust Interpupillary Distance. Grasp and look through the eyepieces. If two separate fields
appear, move the eyepieces closer together. If two overlapping fields appear, the eyepieces
should be moved apart.
4. Adjust the focus and diopter by setting the diopter adjustment on each eyetube to "0".
5. Turn the zoom magnification changer to the highest magnification level.
6. With one eye closed, focus on a flat specimen until the image is in clear focus.
7. Without changing the focus, rotate the zoom control knob to the lowest magnification. Keep the
same eye closed and refocus the image using the diopter adjustment ring on the eyepiece.
8. Using the other eye, focus on the image using the diopter adjustment on the other eyetube – this
sets the diopter control to your own vision.
9. Zoom up to the highest magnification and check to see that the image is still in clear focus.
10. Note that the focusing mechanism is limited by travel stops on both the top and bottom of the rack
gear. This prevents the pinion from disengaging from the rack gear.
11. If required, you may need to focus the tension adjustment. You can do this by holding the right
focus control knob firmly while rotating the left knob clockwise. Be careful not to overtighten this
knob.
GL7 Series Specifications, Zoom Ratio 7:1
10X Eyepiece, Field No. 22
Auxiliary Lens
Magnification
0.5X
3.3X - 22.5X
0.75X
4.9X - 33.8X
1X (none)
6.5X - 45X
1.5X
9.8X - 67.5X
2X
13X - 90X
GL7 Series Specifications, Zoom Ratio 7:1
Maintenance
Because the eyepieces and objectives on the microscope are already coated, we highly advise against
cleaning or wiping them while dry as dirt or any other contaminants may scratch its coating. We suggest
using an optical lens cleaner or even the use of an air canister to clean the eyepieces and objectives
properly and safely. If using a lens cleaner, use a cotton swab, which can minimize wetting, and then
continue to clean the surface with a lens tissue. As mentioned previously, solvents should not be used in
the maintenance or cleaning of this product and its parts.
For painted surfaces, we suggest cleaning on a regular basis with mild detergent and a soft cloth. Please
note that the efficiency of cleaning and maintenance will help increase the overall service life.
15X Eyepiece, Field No. 16
Field diameter
(mm)
Magnification
67.7 - 9.8
4.9X - 33.8X
45.1 - 6.5
7.3X - 50.6X
33.8 - 4.9
9.8X - 67.5X
14.6 - 3
14.6X - 101.3X
19.5X – 135X
19.5 - 2.5
20X Eyepiece, Field No. 13
Field diameter
(mm)
Magnification
49.2 – 7.0
6.5X – 45X
9.75X – 67.5X
32.8 - 4.7
13X – 90X
24.6 - 3.5
16.4- 2.3
19.5X - 135X
26X – 180X
12.3 - 1.8
Electron Microscopy Sciences
1560 Industry Road Hatfield, PA 19440
TOLL FREE:
1-800-523-5874
TEL:
215-412-8400
FAX:
215-412-8450
5
Working
Field diameter
Distance
(mm)
(mm)
40 - 5.8
163
26.6 - 3.8
117
20 - 2.9
100
13.3 - 1.9
45
13.3 - 1.9
40
P.O. Box 550
WEB:
www.emsdiasum.com
EMAIL:
sgkcck@aol.com
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