Sony AF 24-105 mm f/ 3.5-4.5 Lens サービスマニュアル

4-8

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

3)

Move the preset lever to set the preset ring at the open aperture position.

4)

Turn the aperture unit holding ring to adjust the position that the aperture blades are hidden into the edge completely.

5)

After the adjustment is completed, apply the adhesive bond (B-10) as shown in the Fig.4-2-13.

6)

Assemble the lens completely.

7)

Perform “4-2-1. Aperture Diameter Check”, and repeat “4-2-1. Aperture Diameter Check” and “4-2-2. Aperture Diameter Adjust-

ment” until the aperture error is within the specification.

Set the preset ring at the open aperture position.

Preset lever

Aperture Unit Holding RIng

Aperture blades are hidden into 
the edge competely.

Apply adhesive bond(B-10)(3 areas)

Bond

Aperture Unit
Holding Spring

Bond

Aperture Unit
Holding Ring