Illumination; Focusing Instructions; Magnification - WALLACH ZOOMSTAR User Manual

Star colposcope with trulight
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7. To lock the head tilt angle, tighten the head pitch knob snugly, but do not over tighten. Loosen
the knob to release angle position.
8. For transportation of the colposcope, place the colposcope head in the lowest position to
assure stability during transportation.

ILLUMINATION

a. LED Light Frequency
b. Dominant Wave Length for Green Light Emitting Diode
Minimum value 530 nm (nanometers)
Maximum value 535 nm (nanometers)

FOCUSING INSTRUCTIONS

1. Place microscope optics into the mounting ring on scope; hand tighten the set screws.
2. Remove protective "Nikon" caps from diopter rings.
3. Slide in eyepieces.
4. Turn on the white light.
5. Turn both diopter rings on the binocular tubes until the end surface of each
ring coincides with the black engraved lines.
6. Looking into the eyepieces, adjust the interpupillary distance by moving the binocular tubes so
that both circular view fields are brought into coincidence.
7. Set the zoom knob to 3x. (If power zoom is available, the footswitch should be used.)
8. Position microscope head at a starting point approximately 12" from the target. Rotate the fine
focus knobs to bring the target into focus. The fine focus knobs can be tightened or loosened
to adjust travel ease by rotating them in opposite directions. Do not re-adjust fine focus after a
clear image is viewed at the 3x zoom magnification.
9. Rotate the zoom knob to 0.7x.
10. Close your right eye; adjust the left diopter ring to bring the target into fine focus. Close your
left eye; adjust the right diopter to bring the target into fine focus.
11. At this point, focusing has been completed. Steps 6 - 9 can be repeated to check for exact
focusing if desired. As long as the scope is not moved out of position, or the fine adjustment is
not moved, the target will keep its sharpness all the time regardless of the zoom magnification
level.

MAGNIFICATION

Final magnification is determined by multiplying the eyepiece power times the microscope body
power times the objective lens power. The Wallach ZoomStar with Trulight is normally shipped
with 20x eyepieces and a 1/3 objective lens. Therefore, at the lowest setting of the magnification
power knob on the microscope body (0.7), the final magnification would be:
At the highest setting of the magnification power knob (3.0) the final magnification would be:
IMSC036-DFU • Rev. B • 10/14
20 x 0.7 x 1/3 = 4.6x power
20 x 3.0 x 1/3 = 20.0x power
5
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