Effective for sunsets and places where you cannot use a tripod 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 15 meters away diagonal angle of view 32 11 8 15 lens construction elementsgroups 139 no of diaphragm blades 7 minimum aperture 32 45 closest focusing distance m