Sigma 70 300mm f4 56 DG OS Lens for Canon EF

This compact zoom telephoto lens has excellent image quality thanks to its SLD glass, plus the Optical Stabilisation gives up to 4 stops extra in low light. As a DG Series lens it can be used with either full 35mm frame cameras or digital SLRs with APS C sized sensors. The rounded 9 blade diaphragm also makes this an ideal lens for portraiture.Optical StabiliserThe optical image stabilisation OS within this lens gives mechanical compensation of camera shake for up to 4 stops extra shooting in low light. As it's an optical system you can monitor the stabilising effect in your viewfinder.High Quality OpticsThis lens features a SLD Super Low Dispersion element which acts to reduce all aberrations across the entire focal length range. Sigma's own Super Multi Layer Coating also drastically reduces both lens flare and image ghosting effects.Additional FeaturesCompact Dimensions only 126mm long150cm Minimum Focus across entire zoom range Max Macro Magnification 13.9Rounded 9 Blade Diaphragm for pleasingly soft out of focus areasLarge Bayonet Hood suppliedAdditional SpecificationsLens Construction 16 Elements in 11 GroupsAngle of View 34.3° 8.2°Diaphragm Blades 9 roundedMinimum Aperture f22