Tamron 28-80mm f/3.5-5.6 Aspherical is a wide angle to medium telephoto zoom with a range of 28 to 80mm. This versatile lens is constructed with 7 elements in 7 groups featuring aspherical lenses in the front group that reduces the number of elements required. Aspherical lenses eliminate aberrations and distortion to deliver high quality images. The low number of elements and the use of strong engineering plastic in the barrel make the body lightweight with a weight of 8.4 oz (237 g). The lens employs 2.30ft close focusing distance with a maximum magnification ratio of 1:8.