Sony E 3.5-5.6/PZ 16-50 OSS Service Manual page 33

Reference information
Improvements
1st: In order to enhance solidity, padding was added to the circumference of the Stationary Barrel's claw.
2nd: In order to enhance solidity further, additional padding was added to the circumference of the Stationary
Barrel's claw. In this case, the padding interferes with the 1 Group Block Assy (1st Moving Frame).
Therefore, the 1 Group Block Assy (1st Moving Frame) has been modified.
3rd: In order to enhance solidity further, additional padding was added to the circumference of the Stationary
Barrel's claw. In this case, the padding interferes with the Zoom Cam Barrel.
Therefore, the Zoom Cam Barrel has been modified.
REQUIRED PART / TOOL / SOFTWARE
The following part will be provided as a discrete part.
4-426-821-01 ⇒ 4-426-821-02 (1st improvement) ⇒ 4-426-821-03 (2nd improvement) ⇒
4-594-306-01 (3rd improvement) / Stationary Barrel
A-1897-552-A ⇒ A-1897-552-B/ 1 Group Block Assy (BLACK)
A-1899-283-A ⇒ A-1899-283-B/ 1 Group Block Assy (SLVER)
4-426-794-21：1ST MOVING FRAME (Black)
4-426-794-31：1ST MOVING FRAME (Silver)
When you replace 1st moving frame, please remove and reuse
the cam pin from 1st moving frame before replace.
4-426-820-01 ⇒ 4-594-483-01 (Zoom Cam Barrel)
A-1897-552-B
A-1899-283-B
Cam Pin
4-426-794-21
4-426-794-31
4-426-821 ⇒ 4-594-306-01
4-426-820-01 ⇒ 4-594-483-01