Field Diaphragm; Aperture Diaphragm - Accu-Scope 3019 Manual

ADJUSTMENT & OPERATION
①
②
Fig. 15
③
Fig. 16
®
ACCU-SCOPE
3019 FLUORESCENCE MICROSCOPE SYSTEM
73 Mall Drive, Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
(continued)
Adjusting the Field Diaphragm (Optional)
By limiting the diameter of the light entering the
condenser, the field diaphragm can prevent other
light and strengthen the image contrast. When the
image is just on the edge of the field of view, the
objective can show the best performance and
obtain the clearest image
(Fig. 15).
Adjusting the Aperture Diaphragm
The aperture size is increased or decreased by
rotating the condenser aperture diaphragm lever
③. When the aperture is closed, the brightness
and resolution are decreased but the contrast and
range of focus are increased. If the aperture
diaphragm is opened, the brightness and
resolution are increased; however, the contrast
and range of focus are diminished. For optimal
viewing conditions set the condenser aperture
diaphragm lever to match the magnification of the
objective in the optical path (Fig. 16).
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