Read Sony SAL50M28 Service Manual online
4-8
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
4)
Turn the aperture hold ring to adjust the position that the aperture blades are hidden into the edge completely.
Fig.4-2-10
5)
After the adjustment is completed, apply the adhesive bond (B-10) as shown in the Fig.4-2-11.
Fig.4-2-11
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.
Aperture Hold Ring
To increase the diameter, turn clockwise.
To decrease the diameter, turn counterclockwise.
To decrease the diameter, turn counterclockwise.
Aperture blades are hidden into the
edge completely.
edge completely.
Apply the adhesive bond (B-10)
(5 to 10 mm long: 3 areas)
(5 to 10 mm long: 3 areas)
Aperture Inner
Barrel
Barrel
Aperture Unit
Holding Spring
Holding Spring
Aperture Unit
Holding Spring
Holding Spring
Aperture
Hold Ring
Hold Ring
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