Sony FE 50 mm f/ 1.8 Lens Manual

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4-4
SAL50F14 (1.4/50) (50mm F1.4)
4-2.
APERTURE DIAMETER CHECK/ADJUSTMENT
4-2-1. Aperture Diameter Check
Note:
Perform the aperture diameter check in the state of the Fig.4-2-1 (only the decoration ring was removed), or completion of
assembling. When remove the decoration ring, use the name ring wrench (55mm).
Fig.4-2-1
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
1)
Install the CF card to the camera.
2)
Set the equipments, camera and master lens as shown in Fig.4-2-2.
Fig.4-2-2
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:
EV12
Setting of Lens:
Focus:
Infinity end
Luminance box
 Luminance: EV12
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
 Focus: Infinity end
Shoot the center of the luminance surface
Setting of 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
Decoration Ring