Resolution Checking - FujiFilm FINEPIX S9100 Service Manual

5. Inspection
5-4.

Resolution Checking

<Step 1>
Refer to the settings for resolution checking in the figure at
right and set up the camera and the high-resolution chart.
Use a light source to illuminate the high-resolution chart so
that the surface brightness of the chart is 9.0 to 11.5 EV.
<Step 2>
Prepare the following:
(1) Insert a formatted 32 MB xD picture card into the
camera.
(2) Supply power to the camera. (Batteries can be used.)
(3) Set the camera to "A" mode and switch it on.
(4) Set the camera on a tripod and point it directly at the
high-resolution chart (set at 90
vertically
relative to the chart).
(5) Position the high-resolution chart 375 mm from the end
of the lens at the WIDE setting and 3950 mm from the
end of the lens in the TELE setting.
<Step 3>
Make the following changes to the default photography mode
settings:
(1) Select A mode.
(2) Select "Fine" and "9M" (3488 x 2616) mode.
(3) Set the flash to OFF.
(4) Set the aperture for WIDE: F2.8, TELE: F4.9.
(5) Select ISO 200.
(6) Set the focusing mode to "S".
(7) Adjust so that the angle of view is the same as the
chart displayed on the LCD monitor (Fig. 5-4-2).
<Step 4>
To avoid camera shake, set the self-timer to 2 seconds and
then press the camera's shutter button.
--> A resolution checking image (Fig. 5-4-2) is recorded.
<Step 5>
Download the resolution checking image to your computer.
<Step 6>
Resolution checking image enlargement procedure (Fig. 5-4-
2 (2)).
(1) Open the image in Photoshop 5.0.
(2) Display the image as shown in Fig. 5-4-3.
The procedure varies depending on your software
settings.
(3) Use the zooming tool in the tool box (Fig. 5-4-3 (1)) to
enlarge the area shown in Fig. 5-4-3 (2) to 300%.
(4) When you enlarge the image, the centrally enlarged
image (Fig. 5-4-4) appears.
5-8
horizontally and
o
FinePix S9100/S9600 Service Manual
Fluorescent light stand
High-resolution chart
ZJ00398-100
For test photography
WIDE: 375 mm TELE: 3950 mm
<Fig. 5-4-1> Setting for Inspecting Resolution
<Fig. 5-4-2> Resolution Check Image
(1)
<Fig. 5-4-3> Enlargement Using Photoshop
(2)
(1)
(2)
(3)