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6. When the specimen has a low contrast (near transparent) or high reflectance (mirror status) and the aperture
iris diaphragm is stopped down near the smallest aperture, spot flare may be noticeable.
7. When the edge of a non-transmitting object is observed under the STM6 (small measuring microscope)
transmitted illumination, flare may be noticeable due to the difference in brightness between the transmitted
sections (over-exposure) and non-transmitting sections (under-exposure). To reduce the flare, set a lower
exposure using the exposure correction function or setting the exposure manually.
8. When a low-power objective (below 4X) is used, the peripheral part of the field of view may be obscured. In
this case, use an ultralow-magnification condenser (U-ULC-2).
9. When the U-CFU (real time confocal unit) is used, it is required to set the exposure to a longer period than
1/30 sec. using the manual exposure mode and control the brightness by engaging or disengaging ND
filters.
10. When the specimen has large difference in brightness, particularly when the bright part of the specimen
comes on the upper part of the image, red and horizontal flare may be observed. It is noticeable when the
AS is being closed. The flare will get unnoticeable when the AS is being opened, though the flare may not be
completely removed.
11. When a specimen with high reflectivity is observed with reflected light brightfield observation through the
beam splitter of the eyepiece/camera light path of a trinocular tube in combination with the U-TV0.5XC
camera adapter, the image in the area outside the CCD’s effective image pickup area may be observed as
vague ghosts in the peripheral area of the visual field of eyepiece.
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