Sigma 24-70mm f/2.8 EX DG MACRO Sigma
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Large aperture standard zoom lens provides superior performance both for Digital SLR Cameras and 35mm Film SLR Cameras.
To achieve an F2.8 aperture at all focal lengths, it employs three aspherical Lens to provide optimum aberration compensation. Two Special Low Dispersion (SLD) glass elements are provided for color aberration compensation, to assure high image quality.
Optimized for digital SLR cameras.
It incorporates "Super Multi Layer Coating" to reduce the influence of harmful light caused by reflections from the digital image sensor.
Excellent correction of aberrations.
Two SLD elements, one Glass Mold Aspherical plus two Hybrid Aspherical lenses provide excellent correction of various aberrations and a high level of optical performance.
Minimum focusing distance of 40cm (15.7 inches).
The lens has a minimum focusing distance of 40cm (15.7 inches) at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.8.
DF (Dual Focus) System.
This lens incorporates a Dual Focus (DF) system that is designed to make the lens easy to hold during autofocusing, and yet provides a large focus ring for easy manual focusing.
Petal Type Hood.
Since the front of the lens does not rotate, a Petal-type hood and circular polarizing filters can be easily used.
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