Canon MP-E 65mm f/2.8 1-5x Macro Photo Instruction page 4

Nomenclature
Macro flash mount (→ 11)
Filter mounting thread (→ 10)
Focusing ring (→ 4)
For detailed information, reference page numbers are provided in parentheses (→ **).
Tripod mount (→ 9)
Magnification (→ 8)
Working distance (→ 6)
Lens mounting index (→ 9)
Contacts (→ 4)
Orientation lock knob (→ 9)
ENG-3