This Ultra wide-angle zoom lens has a maximum aperture of F3.5 throughout the entire zoom range, making it suitable for low-light and indoor photography. It’s wide-angle field of view from upto 102.4 degrees produces striking images with exaggerated perspective, enabling photographers to emphasize the subject. ELD (Extraordinary Low Dispersion) glass, SLD (Special Low Dispersion) glass and aspherical lenses provide excellent correction of all types of aberrations. The super multi-layer lens coating reduces flare and ghosting and creates high image quality throughout the entire zoom range. The HSM (Hyper Sonic Motor) ensures fast and quiet autofocus, while allowing full-time manual focus override.
Sigma DC 10-20mm F3.5 EX HSM - Canon Fit
Lens Construction 13 elements in 10 groups Angle of View (for SD1) 109.7 – 70.7 degrees Number of Diaphragm Blades 7 Blades (rounded diaphragm) Minimum Aperture F22 Minimum Focusing Distance 24cm / 9.4in Maximum Magnification 1:6.6 Filter Size Diameter 82mm Dimensions Diameter 87.3mm x Length 88.2mm / 3.4in. x 3.5in. Weight 520g/ 18.3oz.