Sigma 105mm F2.8 EX DG OS HSM Macro Lens for Canon SLR Camera

Author: SIGMABrand: SigmaColor: BlackFeatures: Designed for use with full frame digital SLR cameras. May also be used with smaller APS-c size sensors with a corresponding effective increase in focal length to about 150mm with most cameras Focuses down to 1:1 magnification ratio at its closest working distance of 12.3 inches A hood adapter, lens hood, front & rear lens caps are included with the lens Filter size 62mm Details: The Sigma 105mm f/2.8 EX DG OS HSM Macro Lens for Canon EOS DSLR Cameras offers advanced performance of close-up photography. The OS (Optical Stabilizer) system enables handheld close-up photography. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent correction for all types of aberration and distortion. A floating focusing system moves two different lens groups in the optical path to different positions. This system compensates for astigmatic aberration and spherical aberration and provides extremely high optical perf