Sony AF 16 mm f/ 2.8 Fisheye Lens Manual

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SAL16105 (DT 3.5-5.6/16-105) (DT 16-105mm F3.5-5.6)
Zoom Rubber Ring
Lens Mount Block
Ground Brush
Check the conduction
3. Earth Turn On Check
1)
Remove the zoom rubber ring.
2)
Check the conduction between the lens mount block and the ground brush.
Note:
Be sure to check the conduction entirely the zooming by turning from WIDE end to TELE end.
Fig.4-12-14
3)
If no conduction, confirm whether the ground brush and the lens mount block are abnormal.