Sigma 28-300mm f/3.5-6.3 Lens for Canon

Sigma 28-300mm f/3.5-6.3 DG IF Macro Aspherical Lens for Pentax and Samsung SLR Cameras

The Sigma 28-300mm f3.5-6.3 Macro lens covers all the focal lengths from 28mm wide angle to 300mm telephoto with 10.7:1 high zoom ratio as well as macro capability. The 28-300mm f3.5-6.3 Macro packs a lot of performance in a compact package with ultra-compact dimensions that make this lens the ultimate traveling companion length. Two-piece Special Low Dispersion (SLD) glass elements and four-piece Aspherical Lenses, produce a high level of optical performance. The 28-300mm f3.5-6.3 Macro lens feature two-piece Special Low Dispersion SLD glass elements and four-piece aspherical lenses, to produce a high level of optical performance. Aspherical lenses provide excellent correction for all types of aberration while making a very compact construction possible. Macro photography with a 1:3 maximum photography ratio The 28-300mm f3.5-6.3 Macro lens has a minimum focusing distance of 19.7 inches (50 centimeters) at all focal lengths and is equipped with a macro mechanism for close-up photography at 300-millimeter telephoto, with a reproduction ratio of 1:3. Inner Focus System This design allows for stability and compactness in design as changes in focus are made in an internal lens grouping. This also gives the advantage of a non rotating front lens assembly which is of great benefit when using polarizing filter and petal-type hood. The "Zoom Lock" device prevents the zoom setting from being changed inadvertently. The 28-300mm f3.5-6.3 Macro lens is equipped with a zoom lock to prevent the lens from creeping due to its own weight, and to offer protection whilst the lens is being carried. DG Lens These are large-aperture lenses with wide angles and short minimum focusing distances. With an abundance of peripheral illumination, they are ideal lenses for Digital SLR Cameras whilst retaining suitability for traditional 35mm SLRs.

Sigma 28-300mm f/3.5-6.3 DG IF Macro Aspherical Lens for Canon SLR Cameras

The AF 28-300mm F3.5-6.3 MACRO lens covers all the focal lengths from 28mm wide angle to 300mm telephoto with 10.7:1 high zoom ratio as well as macro capability. This lens packs a lot of performance in a compact package with ultra compact dimensions (Diameter 74mm and Length of 86mm) that make it the ultimate traveling companion. Its the ideal lens all types of photography and optimized for digital SLR cameras. The new multi layer lens coating and lens design reduce flare and ghost. SLD Glass elements and Aspherical Lenses in both front and rear lens groups provide excellent correction for all types of aberrations and distortion. The 28-300mm F3.5-6.3 DG MACRO lens has a minimum focusing distance of 19.7 at all focal lengths and is equipped with a macro mechanism for close-up photography at 300mm telephoto, allowing a reproduction ratio of 1:3. An Inner Focusing System is designed to allow for stability and compactness in design as changes in focus are made in an internal lens grouping. This also gives the advantage of a non-rotating front lens assembly, which is ideal for using a circular polarizing filter and Petal-type hood. The lens is equipped with a zoom lock to prevent the lens from zoom creep due to its own weight.