Hitachi HV-F31F - Manual (Page 36)

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(3) SHADING (CSR：F200 0060 h)
Color irregularity (white shading) likely to occur vertically on the screen due to lens characteristics is
automatically compensated.
Notes:
1. When using the camera for the first time, or after replacing the lens, be sure to conduct auto
shading adjustment.
2. When used under fluorescent, mercury or other special types of lighting, flicker can impair white
balance or shading adjustment. In such cases, adjust the shutter speed to reduce the flicker to
the extent possible, then adjust white balance or shading.
-OFF-
Setting value 80000000 h
Set white shading compensation to OFF.
-Mode selection-
Setting value 8200000x h x: 0- COLOR mode, 1- LUMINUNCE mode, 2- FLAT mode
• COLOR ： Auto shading correction operates to minimize vertical color irregularity in the
image. Use for non-uniformly lit general-purpose image material.
• LUMINANCE ：Auto shading compensation operates to maintain uniform vertical level for the
RGB video signals. Use with microscopes and other uniformly illuminated
equipment.
• FLAT ： Auto shading compensation operates to maintain uniform RGB video signal level
for the full screen. Use with microscopes and other equipment when peripheral