The 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. 28-300mm F3.5-6.3 MACRO packs a lot of performance in a compact package with ultra compact dimensions (Diameter 74mm and Length of 86mm) that make this lens the ultimate traveling companion. It's 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, which is a common problem with digital cameras and also creates an optimum color balance through the entire zoom range. This lens features one Special Low Dispersion (SLD) glass element and one aspherical lens in the front lens group, and one SLD glass element and three aspherical lenses in the rear lens group. This lens provides excellent correction for all types of aberrations.The 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, allowing a reproduction ratio of 1:3. The inner focusing system 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 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.
Lens Technology Explained:
ASP (Aspherical Lens)The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size.
IF (Inner Focus)To ensure stability in focusing, this lens moves the inner lens group or groups without changing the lens' physical length.
DG for Digital (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.
Specifications:Lens Construction: 15 Elements in 13 GroupsAngle of View: 75.4 - 8.2 degrees Number of Diaphragm Blades: 8 Blades Minimum Aperture: F22 Minimum Focusing Distance: 50cm/19.7 in. Maximum Magnification: 1:3 Filter Size Diameter: 62mm Dimensions: Diameter 74mm x Length 86mm / 2.9 in. X 3.4 in. Weight: 490g/17.3 oz