Canon EF 100-300mm f/4.5-5.6 USM Camera lens

The Canon EF 100-300mm f/4.5-5.6 USM is a telephoto zoom lens designed for Canon's EF mount DSLR cameras. Covering a versatile focal length range from moderate telephoto to longer reach, this lens is well-suited for portraiture, wildlife, and sports photography where subjects are distant. The USM (Ultrasonic Motor) technology provides fast and quiet autofocus, advantageous for capturing moving subjects or shooting in quiet environments. The f/4.5-5.6 variable aperture means it is lighter and more affordable compared to professional constant-aperture zooms, making it popular among enthusiasts seeking reach without significant bulk or cost.