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

Image 2