Sigma 18-50mm f/2.8 EX DC HSM Macro Lens for Nikon Digital SLR

Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC HSM Macro Autofocus Lens for Nikon Digital SLR

Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC HSM Macro Autofocus Lens for Nikon Digital SLR

B&H # SI185028DCHN MFR # 582-306

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  • 1Description

The Sigma 18-50mm f/2.8 EX DC HSM Macro Lens now incorporates the HSM feature, which gives this lens the capability to auto focus with all Nikon DSLR cameras (including the D40 and D40x). In addition, with the HSM (Hyper Sonic Motor) incorporated into this lens, focusing will be quieter and more responsive.

The 18-50mm f/2.8 EX DC  HSM Macro Lens has a maximum magnification rating of 1:3, with a minimum focusing distance that is as close as 7.9" (20 cm), which makes it ideal for close-up photography. This lens is exclusively designed to suit the characteristics of digital SLR cameras. The characteristics of digital SLR cameras were taken into consideration when designing the lens power layout. The advanced lens design corrects various aberrations. This lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras.

This lens is also specially coated to get the best color balance with a digital camera, while also cutting down flare and ghost caused by reflections from the digital image sensor and lens. It has correction for vignetting and superior peripheral brightness is ensured. Ideal as a standard quality zoom lens with added macro capability, this lens provides an equivalent range of approx. 27-75mm when used with a Nikon digital SLR camera (*).

DC lenses are exclusively designed for digital SLR cameras. The image circle (rear of lens) is made to match the smaller dimensions used for the image sensor on digital cameras. As a result these lenses are also more compact and lightweight, and are better matched to digital SLR cameras.

Note: (*) Not suitable for 35mm film SLR cameras, or for 35mm size "full-frame" digital cameras, e.g. Kodak Pro SLR/n.

Incorporation of the HSM feature allows it to autofocus with all Nikon DSLR cameras
EX lens series denotes excellence of engineering and new technology
Large aperture of f/2.8 throughout the entire zoom range
Correction for various types of aberration provided by one SLD (Special Low Dispersion) glass element and two aspherical lenses
Super Multi Layer (SML) coating reduces flare and ghosting from which digital cameras tend to suffer
In the Box
Sigma Zoom Super Wide Angle 18-50mm f/2.8 EX DC HSM Macro Autofocus Lens for Nikon Digital SLR
  • Front & Rear Lens Caps
  • Lens Hood
  • Case
  • 1-Year Worldwide Warranty + 3-Year Extended USA Warranty
  • Table of Contents
    • 1Description
    Filter Size 72mm
    f/Stop Range 2.8-22
    Minimum Focus Distance 7.9" (20 cm)
    Magnification 1:3
    Zoom/Focus Control Two touch
    Angle of View 69.3-27.9°
    Groups/Elements 13/15
    Length 3.4" (86mm)
    Maximum Diameter 3.1" (79mm)
    Weight 1.2 lb (535 g)

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