8-16mm F/4.5-5.6 DC HSM Canon Fit

Product Description

This is the first ultra wide zoom lens with a minimum focal length of 8mm, designed especially for APS-C size image sensors. The wide-angle of view & exaggerated perspective enables the photographer to emphasise the subject. Four FLD glass elements & three aspherical lenses provide high image quality throughout the zoom range. The incorporation of HSM ensures quiet & high speed AF as well as full-time manual focus capability. The wide-angle of view from 121.2 degrees Sigma, the pioneers of wide angle zoom lenses, launched the first wide angle zoom lens, the Zoom Gamma 21-35mm F3.5-4, in 1979. After that, we have continued to develop & apply wide angle zoom lenses with cutting edge technology. The 8-16mm F4.5-5.6 DC HSM is the first ultra wide zoom lens with a minimum focal length of 8mm, designed especially for cameras with an APS-C size image sensor. This lens has an equivalent angle of view of a 12-24mm lens with a 35mm SLR Camera. Exaggerated perspective The wide-angle of view produces striking images with exaggerated perspective, enabling photographers to emphasize the subject. Superior image quality Four FLD ("F" Low Dispersion) glass elements, which have the performance equal to fluorite glass, compensate for colour aberrations. Two glass mold elements & one hybrid aspherical lens give excellent correction for distortion & astigmatism. Incorporating an internal focusing system, the lens produces high definition images throughout the entire zoom range. FLD glass FLD glass is the highest level low dispersion glass available with extremely high light transmission. This optical glass has a performance equal to fluorite glass which has a low refractive index & low dispersion compared to current optical glass. It also benefits from high anomalous dispersion. These characteristics give excellent correction for residual chromatic aberration (secondary spectrum) which cannot be corrected by ordinary optical glass & ensures high definition & high contrast images. Super Multi-Layer Coating The Super Multi-Layer Coating reduces flare & ghosting. It provides sharp & high contrast images throughout the entire zoom range. Quiet & fast AF This lens incorporates HSM (Hyper Sonic Motor), ensuring quiet & high speed AF as well as full-time manual focus capability. * For Pentax mount, AF will not function with DSLR cameras that do not support HSM. Compact construction The lens has a compact construction with a diameter of 75mm, overall length of 105.7mm (4.2") & weight of 555g (19.6oz.). This compact & lightweight construction makes it absolutely ideal for travel photography. Minimum focusing distance of 24cm This lens has a minimum focusing distance of 24cm (9.4") throughout the entire zoom range & a maximum magnification ratio of 1:7.8. * Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras. * AF will not function with Pentax ist* series & K100D DSLR cameras that do not support HSM. * Filters cannot be attached to this lens. Lens Construction :  15 Elements in 11 Groups Angle of View (SD Format):  114.5
- 75.7degrees Number of Diaphragm Blades :  7 Blades Minimum Aperture :  F22 Minimum Focusing Distance :  24cm Maximum Magnification :  1:7.8 Filter Size :  72mm

Dimensions :  Diameter 75mm X Length 105.7mm Weight :  555g