The only EF-S Lens Worthy of a Pro

The 60mm EF-S lens is the only 1.6X lens that Canon makes that is worthy of your attention. Since it is a native EF-S lens, you get a DOF benefit, and when shooting 1" away from a subject, any DOF that you can get is great.

Sharpness is near top-flight, even wide-open. Contrast is excellent. Autofocus is very fast. The only serious concern is some significant vignetting, but that disappears after going to F/4.