With its wide angle view from 102.4 degrees it can produce striking images with exaggerated perspective. The maximum aperture of F3.5 is ideal for indoor shooting and it enables photographers to emphasize the subject. Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass element provide excellent correction of colour aberration. Four aspherical lenses provide correction for distortion and allow compact and lightweight construction. The Super Multi-Layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range.
The incorporation of HSM (Hyper-Sonic Motor) ensures a quiet and high-speed auto focus as well as full-time manual focusing capability. This lens has a minimum focusing distance of 9.4 inches (24cm) throughout the entire zoom range and a maximum magnification ratio of 1:6.6. The lens design incorporates an inner focusing system which eliminates front lens rotation, making the lens particularly suitable for using the Petal-type hood and polarizing filter. The Petal-type hood blocks extraneous light and reduces internal reflection.
* Vignetting will occur if the lens is used with 35mm SLR cameras or digital cameras with image sensors larger than APS-C size.
* The appearance, specifications, and the like of the product are subject to change for improvement without notice. * Vignetting will occur if the lens is used with 35mm SLR cameras or digital cameras with image sensors larger than APS-C size. * For Pentax mount, if the camera body does not support HSM, auto focus will not be available.
* Specifications subject to change by the manufacturer without notice
Sigma Lens 10-20mm f/3.5 EX DC HSM Front Lens Cap Rear Lens Cap Lens Hood LH873-01 Lens Case Instruction Manual