The ultrasonic motor built into a Canon USM lens offers the photographer faster, quieter focusing capability. That USM capability makes this Canon camera lens ideal for capturing scenes where camera noise is a liability, such as photographing wildlife. Canon's 35-80 mm f/4.0-5.6 lens is compatible with the full range of the manufacturer's EF-mount cameras, including film SLRs and DSLRs. While a Canon USM lens was included with some of Canon's higher end Rebel digital cameras, this OEM zoom lens is a versatile accessory for all Canon DLSR owners. Useful for casual, everyday, and travel photography, this 35-80 mm f/4.0-5.6 lens has a minimum focusing distance of 0.4 meters for capturing family shots, but combines that with zoom capability. At only 175 g, this is the lightest Canon camera lens in the company's lineup, yet the eight element construction and aspherical optics ensure the Canon USM lens is able to produce high-contrast photos.