Sigma 28-300mm f/3.5-6.3 DG Macro

28-300mm F3.5-6.3 DG 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. 28-300mm F3.5-6.3 DG MACRO packs a lot of performance in a compact package with ultra compact dimensions that make this lens the ultimate traveling companion. Optimised for digital photographyThe new multi-layer lens coating and lens design reduce flare and ghosting, a common problem with digital cameras and also creates an optimum colour balance through the entire zoom range. 2pcs Special Low Dispersion (SLD) glass elements and 4pcs Aspherical Lenses, produce a high level of optical performanceThe 28-300mm F3.5-6.3 DG MACRO lens features 2 Special Low Dispersion (SLD) glass elements and 4 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 magnification ratioThe 28-300mm F3.5-6.3 DG MACRO lens has a minimum focusing distance of 50cm at all focal lengths and is equipped with a macro mechanism for close-up photography at 300mm telephoto. This allows for a reproduction ratio of 1:3. Inner Focus SystemThis design allows for stability and compactness 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 filters and a petal-type hood. The "Zoom Lock" device prevents the zoom setting from being changed inadvertently28-300mm F3.5-6.3 DG MACRO lens is equipped with a zoom lock to prevent the lens from creeping due to its own weight. This also offers protection whilst the lens is being carried. Specification:
Lens Construction: 15 Elements in 13 Groups
Angle of View: 75.4 - 8.2 degrees
Number of Diaphragm Blades: 8 Blades
Minimum Aperture F22
Minimum Focusing Distance: 50cm
Maximum Magnification: 1:3
Filter Size: 62mm
Dimensions: Diameter 74mm x Length 86mm
Weight: 490g