This is a Zoom lens EF 75-300MM 1:4-5.6III USM - Diagonal Angle of View: 32° 11'-8° 15' - Lens Construction (elements/groups): 13/9 - No. Of Diaphragm blades: 7 - Minimum Aperture: 32-45 - Closest Focusing Distance (m): 1.5 - Maximum Magnification (x): 0.25 (at 300mm) - Filter Diameter: 58mm The lightest 4x telephoto zoom lens in its class. Ideal for sports, portraiture, animals, etc. The telephoto effect can make the picture look compressed or have excellent background blur. At the 300mm focal length, you can fill the frame with a postcard from 1.5 meters away.