White Shading Adjustment - JVC GY-HM890e Instructions Manual

FAW Paint Adjustment
You can fine-adjust the white balance that was
automatically adjusted.
1 Select [Main Menu] B [Camera Process] B
[White Balance] B [FAW Paint] and press
the Set button (R).
The FAW Paint Adjustment screen appears.
White Balance
FAW Paint
2 Adjust the R and B values.
Use the cross-shaped button (JK) to adjust R
value and (HI) to adjust B value.
3 Press the Set button (R).
Returns to the [White Balance] screen.
White Balance
FAW Paint
Adjusting the White Balance
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0
0
0
1
Setup Prior Adjustment
R
B
1 Obtain the white balance on the camera.
2 Set the control of the camera lens as
R Value
3 Fill the monitor screen with a pattern box of
B Value
4 Set the chroma level of the monitor to the
5 Check the monitor screen.

White Shading Adjustment

Adjustment of white shading is needed when
you have changed the lens.
Although white balance may be appropriate at
the center of the image, this may not be the case
at the top and bottom areas.
If this is the case, the image will appear greenish
or yellowish. This phenomenon is due to the
characteristics of the lens. The process of
correcting this phenomenon is referred to as
white shading adjustment.
Perform this process after adjusting the white
balance.
(A P64 [Memory A Mode (A), Memory B Mode
(B)] )
follows.
A Set the iris to F4.0 or narrower to obtain the
appropriate brightness.
If the brightness is insufficient at F4.0,
obtain the appropriate brightness such as
by adjusting the lighting.
B When using a zoom lens, set to the center
of the zoom adjustment range.
a uniform light source, or a piece of white
(plain) paper that is uniformly illuminated.
maximum.
There is no need for adjustment if there is no
0
color at the top and bottom of the screen.
If the top of the screen is greenish and the
0
bottom is reddish or vice versa, continue this
adjustment.