Sony SAL20F28 Service Manual page 35

Lens for dslr camera

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Table of Contents

Ver 1.2 2007.05

4-2-2. Aperture Diameter Adjustment

Equipment

• Luminance Box

• Camera DSLR-A100

• AE Master Lens

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

• Personal Computer (PC)

(Color Calculator 2 installed)

• Adhesive bond (B-10)

• Name ring wrench (72mm)

1. Adjustment Method

Disassemble or assemble the checking lens into the state of Fig.4-2-9.

Decoration Ring

1st Lens Block

Front Lens Barrel

Remove the adhesive bond fixing the iris aperture unit holding spring.

SAL20F28 (2.0/28) (20mm F2.8)

Fig.4-2-9

Adhesive bond(B-10)(3 areas)

Iris Retainer Ring

Adhesive Bond

Aperture Unit Holding Spring

Fig.4-2-10

4-7

2nd Lens Block

Adhesive Bond

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