Canon EF 100mm f/2.8L Macro IS USM Instruction page 4

Nomenclature
Hood mount (→ 7)
Filter mounting
thread (→ 14, 15)
Focusing ring (→ 5)
Focus mode switch (→ 5)
Image stabilizer switch (→ 10)
For detailed information, reference page numbers are provided in parentheses (→ **).
Distance scale (→ 6)
Focusing distance range selection switch (→ 5)
Rubber ring (→ 4)
Contacts (→ 4)
Lens mount index (→ 4)
Tripod mounting location (→ 13)
ENG-3