Nikon Coolpix 4600 Repair Manual page 87

Item
In the case of compel-
ling infinity
・ Shoot the infinity collimator image on condition that aperture is
・ Then, open the recorded image data file through Photoshop and
In the case of " our of
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focus"
・ Measure the TV resolution pieces at center.
・ Check each posture and the difference of zoom reciprocation.
・ Put a chart at the distance of 2m, set it in the "out of focus"
Gradation/luminance
level ・ Black: 10 ± 5
・ Equip the 5100K viewer with a scale and shoot an object in the
・ Read the histogram's gray value and the gray standard deviation.
・ Measurement section
<Compelling infinity> (The whole zoom area)
Center horizontal/vertical: 900 TV pcs.
"open" in the scene distance view/night view mode and the image
quality priority mode.
check the resolution visually.
<Out of focus> (The whole zoom area)
Center horizontal/vertical: 900 TV pcs.
condition and shoot it. (Use a white paper to set it in the "out of
focus" condition.)
[Histogram's gray average value]
Gray: 145 ± 15
White: 225 ± 10
full range of angle of view while the AUTO mode and the image
quality priority mode are set.
Open the recorded image data file through Photoshop and pick up
a measurement section with the each color (its central area 64 ×
64 pixels) with the rectangle selector tool.
Luminance level:
Upper left 1 step: Black, 6 steps: Gray, Center: White
Lower left 6 steps: Gray, 11 steps: Black
- R5･ E4600 -
Criteria
VAA32001-R.3652.A
Applied tool(s)
Infinity chart
EIAJ chart
Photoshop
Siemens chart
5100K viewer
ITE γ 0.45
Gray scale (standard)
Photoshop