Sony SAL135F28 Service Manual page 60

Lens for dslr camera 135mm f2.8 [t4.5] stf

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

Fig.4-2-11

5) Turn the aperture hold ring to adjust the position where the A iris feathers block are hidden into the edge completely.

6) After the adjustment is completed, apply the adhesive bond (B-10) to the head of the three screws as shown in the Fig.4-2-13.

7) Assemble the lens completely.

8) 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.

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

Aperture Hold Ring

Fig.4-2-12

Aperture Hold Ring

Fig.4-2-13

4-18

Aperture Hold Ring

Apply the Adhesive Bond

(B-10) (Three areas)

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