I have a Sigma 18-50mm f2.8 EX DC Macro HSM which i just bought last week and to tell anyone honestly I liked it a lot. I mainly used this camera lens as a standard zoom for my Nikon D40 because it covers all focal lengths I usually use for indoor shooting. Also it provides faster aperture available for DSLR zooms, which is an absolute must for shallower depth-of-field portraits and low-light photography.

So before I go into any deeper I need to explain first what is the full feature and advantages of my new Sigma Camera lens.

Sigma 18-50mm f2.8 EX DC Macro HSM has a large aperture zoom lens designed especially for use with digital SLR cameras with minimum focusing distance of 20cm (7.9”). The lens is especially designed to suit the characteristics of digital SLR cameras and provides a high level of optical performance. It has a large aperture of F2.8 throughout the entire zoom range, offers superior peripheral brightness as well as a compact and lightweight construction. Also having a maximum magnification of 1:3 making it ideal for close-up photography.

What are the features this camera lens provides?

Excellent optical Design

The Sigma Camera Lens produces an exceptional level of optical performance with a Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements which provides excellent correction of colour aberrations.

Compact and Lightweight lens

The design incorporates both glass-mold and hybrid aspherical lens technology which makes a compact and lightweight construction.

Reduced Ghosting and Flare

The super multi-layer lens coating reduces flare and ghost. High image quality is assured throughout the entire zoom range.

Inner Focus System

An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the petal-type lens hood (supplied) plus circular polarizing filters.

Having my own satisfactory opinion for this camera lens, having my sigma camera lens compared with other camera lenses, I prefer this one as it provides quality as well as affordability.

John Christian Smith
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