NOMENCLATURE
1. Lens hood
2. Hood attaching alignment mark
3. Hood attached indicator
4. Hood attaching bayonet ring
5. Distance index
6. Distance scale
7. Focusing ring
8. Zooming ring
9. Focal length scale
10. Zoom index mark
11. Zoom lock switch
12. Lens mount / Lens mount contacts (Nikon)
13. AF-MF switch (Canon)
14. Lens attachment mark