Focus distance scale
The placement of the focus distance scale isn’t entirely convenient, at the forward end of the lens, but at least it has one.
Autofocus and manual focus modes can be selected by twisting a ring with a push-button release, situated between the zoom and focus rings.
The widest available aperture remains fixed throughout the zoom range.
Elements/groups: 16/11 Aperture range: f/2.8 to f/22 Autofocus type: Camera-driven Minimum focus distance: 1.5m Maximum magnification: 0.24x Filter thread: 77mm Dimensions: 7x187mm Weight: 1300g