High performance, large aperture medium telephoto macro lens with OS (Optical Stabilizer). SLD glass provides good control of aberration and the floating inner focus system ensures high rendering throughout the focusing range. By using Sigma’s APO Tele Converter, it is possible to take photos at greater than 1:1 magnification. HSM ensures a quiet and high speed AF as well as full-time manual focus override. This lens has a rounded 9 blades diaphragm which creates an attractive blur to the out of focus areas.
Sigma DG 105mm F2.8 Macro OS HSM - Canon Fit
Lens Construction 16 elements in 11 groups Angle of View (for SD1) 23.3 degrees Number of Diaphragm Blades 9 Blades (Rounded diaphragm) Minimum Aperture F22 Minimum Focusing Distance 31.2cm / 12.3in Maximum Magnification 1:1 Filter Size Diameter 62mm Dimensions Diameter 78.3mm x Length 126.4mm / 3.1in. x 5.0in Weight 725g / 25.6oz