target digital cameras

Optical coatings are optimized for use with digital cameras. This lens focuses as close as 11 inches, and offers both Canon ' s full - time manual focus and a powerful ring - type USM for fast and silent AF. Optical shake is detected by gyro sensors which provide data to neutralise the shake. Some EF lenses have two IS modes, including one for panned shots to help you enjoy still greater photographic freedom. Optical performance of the lens is maintained; although the actual focal length becomes extended by 1. 26X and aperture values are reduced by 2 / 3 stop.

Optically and mechanically, the lens seemed to be fine. However, there are three plastic tabs which basically hold the plastic barrel near the mount and distance scale onto the rest of the lens.