Compact High Performance Zoom Lens with a 10.7:1 High Zoom Ratio and optimized for Digital SLR cameras

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.

New coating reduces Ghost and Flare.

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.

SLD Glass elements and Aspherical Lenses

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.

Macro photography with a 1:3 ratio

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.

Inner Focusing 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

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 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/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
Corresponding AF Mounts * PENTAX SFX and SF7 cannot be used.	SIGMA, CANON, NIKON (D), SONY/MINOLTA(D), PENTAX

لنز دوربین عکاسی سیگما 28-300mm F3.5-6.3 DG ASP MACRO

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