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

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: EV11

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

Focus: Infinity end

Fig.4-2-1

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:

EV11

Setting of Lens:

 

Focus:

Infinity end

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

SAL35F14G (1.4/35G) (35mm F1.4G)

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Sony SAL35F14G service manual Aperture Diameter CHECK/ADJUSTMENT, Aperture Diameter Check, Preparations