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4-2.
APERTURE DIAMETER CHECK/ADJUSTMENT

4-2-1. Aperture Diameter Check

Equipment
• Luminance Box
• Camera DSLR-A100
• AE Master Lens
• Compact Flash (CF) Card (For image saving)
• Personal Computer (PC)
(Color Calculator 2 installed)
1. Preparations
Note: Confirm the checking lens by complete. (The adjustment of zoom/focus brush is completed.)
1)
Install the CF card to the camera.
2)
Set the equipments, camera and master lens as shown in Fig.4-2-1.
Luminance box
Luminance: EV12
3)
Shoot the images under the following conditions and save them.
Note: Shoot the center of the luminance surface three times with the master lens and checking lens.
Setting of Luminance box:
Luminance:
Setting of Lens:
Zoom:
Focus:
Setting of Camera:
ISO:
Exposure Mode:
shutter Speed:
Aperture:
Focus Mode:
Metering:
Preset white balance: Tungsten
D-R:
SAL16105 (DT 3.5-5.6/16-105) (DT 16-105mm F3.5-5.6)
Shoot the center of the luminance surface
Camera
ISO: 100
Exposure Mode: M
Shutter Speed: 1/125
Aperture: F5.6
Focus Mode: MF
Metering: Center weighted
Preset white balance: Tungsten
D-R: OFF
Master lens or checking lens
Zoom: Wide end (focal length: 16mm)
Focus: Infinity end
Fig.4-2-1
EV12
Wide end (focal length: 16mm)
Infinity end
100
M
1/125
F5.6
MF
Center weighted
OFF
4-14

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