Nikon COOLPIX 3700 Repair Manual page 54

Item
Gradation/luminance
level
Noise
[Histogram's gray average value]
• Black: 11 ± 5
Gray: 137 ± 10
White: 230 ± 15
• Photography mode: AUTO, Image quality mode: HIGH
• Wide-end position, aperture "open", distance: 0.3m or more
• Equip the 5100K viewer with the chart and shoot an object
in the full range of angle of view.
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.
• Read the histogram's gray average value.
• Measurement section
Luminance level:
Upper left 1 step: Black, 6 steps: Gray, Center: White
Lower left 6 steps: Gray, 11 steps: Black
[Histogram's standard deviation]
・ Gray: 2.5 or less
Black: 3.0 or less
・Photography mode: AUTO, Image quality mode: HIGH
・Wide-end position, aperture "open", distance: 0.3m or more
・Equip the 5100K viewer with the chart and shoot an object
in the full range of angle of view.
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.
・Read the histogram's gray standard deviation.
・Measurement section
Noise:
Upper left 2 step: Black, 6 steps: Gray
Lower left 6 steps: Gray, 10 steps: Black
- R4 ･ E3700 -
Criteria
VAA18001-R.3622.A
Applied tool(s)
Gray scale chart
PHOTOSHOP
Gray scale chart
PHOTOSHOP