Nikon P-400R Instructions Manual page 76

About contrast setting
The following seven preset items are provided for the contrast setting. Select the
preferable setting depending on the object.
 1: Wide D-range
Use this for the high-luminance object observation which requires the
gradation setting from dark to bright.
 2: Weak contrast
Use this to lower the contrast.
 3: Standard contrast (initial setting)
Use this for the normal capturing.
 4: Strong contrast
Use this to increase the contrast so that the image is clear.
 5: Linear
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Use this to obtain linear output especially when examining the difference of
the illumination amount with the capture data.
 6: Contrast for metal
Use this to obtain a high contrast image while reducing the unevenness at the
bright area.
 7. Enhanced contrast
Use this when observing an object while enhancing the contrast.
P-400R Digital Microscope Instructions
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