Canon ef-s18-135mm f/3.5-5.6 is usm User Manual page 7

Nomenclature
Hood mount (→ 12)
Filter mounting thread
(→ 13)
Focusing ring (→ 8)
Zoom ring (→ 7)
Zoom ring lock lever (→ 9)
Image stabilizer switch (→ 10)
For detailed information, reference page numbers are provided in parentheses (→ **).
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The term [PZ] indicates the locations related to the power zoom adapter (see p.13) attachment.
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Lens mount index (→ 7)
Focus mode switch (→ 8)
Zoom position index (→ 7)
Socket for attaching the
power zoom adapter [PZ]
Power zoom control
contacts [PZ]
Contacts (→ 7)
Zoom gear [PZ]
ENG-6