Sony FE 70-200 mm f/ 2.8 GM OSS Lens User Guide

4-4

SAL75300 (4.5-5.6/75-300) (75-300mm F4.5-5.6)

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

Install the CF card to the camera.

Set the equipments, camera and master lens as shown in Fig.4-2-1.

Fig.4-2-1

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:

Zoom:

Wide end (focal length: 75mm)

Focus:

Infinity end

Setting of Camera:

ISO:

100

Exposure Mode:

shutter Speed:

1/125

Aperture:

F5.6

Focus Mode:

Metering:

Center weighted

Preset white balance: Tungsten

D-R:

OFF

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
Zoom: Wide end (focal length: 75mm)
Focus: Infinity end

Shoot the center of the luminance surface