Minimum focusing distance of 20cm and a maximum magnification ratio of 1:3 achieved
Achieved lightweight and compact design through the use of aspherical lens elements
Achieved excellent chromatic aberration correction by employing SLD and ELD glass Main Specifications (values are for Sigma mount) Lens Construction: 13 groups, 15 elements Angle of View: 69.3°-27.9° Number of Diaphragm Blades: 7 Minimum Aperture: F22 Minimum Focusing Distance: 20cm Maximum Magnification: 1:3 Filter Diameter: 72mm Lens Hood: Petal-type hood Maximum Diameter x Length: 79mm x 85.8mm Weight: 450g
