Nikon COOLPIX S550 Repair Manual page 102

Items
Image quality
Reproduction of color
Judgment standard
(1) Put the image mode back on the initial setting.
(2) Set "Macbeth" chart in the standard light-source equipment
Setting position: Approx. 25cm-distance from the bottom of the
equipment to the center of the chart
(3) Set ISO sensitivity to "64".
(4) Under D65 light source, set the WB to "Preset" on the Neutral 5
of "Macbeth" chart (3rd from the right of the bottom) at TELE-
end position. (Estimated distance: 3cm）
(5) At WIDE zoom position, set the distance from a object of
shooting so that "Macbeth" chart occupies approx. 1/4 area of
the monitor frame.
(6) "Macbeth" chart must be in the center of the screen.
(7) Be careful so that others than "Macbeth" chart do NOT appear
in the image.
(8) Shoot by cancelling flashlight.
(9) Read the value of RGB in the center of each color, and convert
to "L*", "a*", and "b*".
(10) In measuring, set the rectangle selector tool (64 × 64 pixels).
・ Through general-purpose software such as Photoshop, read the
average of RGB on the information palette.
Camera settings:
AF area: Center
VR : OFF
Distortion control: OFF
Read each RGB value of "13 blue", "14 green", "15 red", "16
yellow", "17 magenta", and "18 cyan" in the above "64×64" size.
Then, confirm whether the data converted to "L*", "a*", and "b*"
is " ⊿ C ≦ 6", compared with the reference value.
- R ･ S550 -
INC
VMA21024-R.3750.A
Remarks
Color bar chart
Photoshop