Sony AF 100 mm f/ 2.8 Macro Lens Specification Guide

4-13

SAL135F28 (STF 2.8(T4.5)/135) (135mm F2.8 [T4.5] STF)

The checked lens has the two types of aperture, one is the automatic preset diaphragm and the other is the stepless aperture (manual

diaphragm).

Then perform the aperture diameter check/adjustment for automatic preset diaphragm, and M aperture diameter adjustment for stepless

aperture respectively.

• Luminance Box

• Camera DSLR-A100

• AE Master Lens

• Compact Flash (CF) Card (For image saving)

• Personal Computer (PC)

(Color Calculator 2 installed)

1)

Install the CF card to the camera.

2)

Set the stepless aperture (M aperture) of the checked lens to the fully open state (set the index of the stepless aperture to “A”), and

check that the M iris blades do not remain in aperture.

3)

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

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, M aperture: A

Shoot the center of the luminance surface

Index of M iris

M Aperture Operation Ring