The Canon 100mm macro lens brings the small things into full view, helping you capture the fine details in minute subjects such as insects or flowers. This Canon macro lens has a lens contruction of 12 elements in 8 groups. It has an angle of view of 24 degrees and a maximum aperture of f2.8. It weighs 21.1 ounces, has a diameter of 3.1 inches, a legth of 4.7 inches and a filter size of 58mm.