Hitachi TM3000 Instruction Manual page 184

2. Contrast Adjustment (Mouse-Dragging)
2a. Moving the mouse cursor into the contrast adjustment button causes the cursor display
to change to the contrast adjustment view
Figure 4.3.19-3 Mouse-Dragging (Dragging Operation)
2b. Perform adjustment by pressing the left button on the mouse and dragging it to the right
and left. On the contrast button, dragging to the right increases the contrast, and dragging it
to the left reduces it. While viewing the image, perform adjustment for an appropriate
contrast. If the cursor moves outside the button range, adjustment can still be effected until
the left button is released.
NOTE : The contrast of an image varies from one specimen to another. For a given
adjustment, the contrast changes with the specific site being observed and the
particular magnification employed.
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