Canon EF100-400mm f/4.5-5.6L IS II USM Lens Instructions For Use Manual page 5

Nomenclature
Zoom touch adjustment ring (→ 7)
Zoom ring (→ 7)
Hood mount (→ 12)
Filter mounting
thread (→ 18)
Orientation locking knob (→ 15)
For detailed information, reference page numbers are provided in parentheses (→ **).
● ●
Tripod mount (→ 14)
Tripod mount ring (→ 14)
Focusing ring (→ 6)
Focusing distance range selector switch
(→ 6)
Lens mount index (→ 5)
Distance scale (→ 11)
Rubber ring (→ 5)
Focus mode switch
(→ 6)
Contacts (→ 5)
Image stabilizer
switch (→ 8)
Image stabilizer mode
selector switch (→ 8)
Tripod mount
attachment foot (→ 14)
ENG-4