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Sigma 18-50mm F2.8-4.5 DC OS for Canon

This standard zoom lens is designed exclusively for digital SLR cameras and incorporates Sigma's original OS (Optical Stabiliser) function. This lens offers a large aperture of F2.8 at the 18mm focal length making it ideal for indoor photography and in low lighting conditions. Two SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range. The incorporation of HSM (Hyper Sonic Motor) ensures a quiet and high speed AF. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images.

Technologies

IF (Inner Focus)

To ensure stability in focusing, this lens moves the inner lens group or groups without changing the lens' physical length

ASP (Aspherical Lens)

The aspherical lens complex allows freedom of design, improved performance, a reduced number of component lenses and a compact size.

OS (Optical Stabilizer) Function

This function utilizes a built-in mechanism that compensates for camera shake. It dramatically expands photographic possibilities by alleviating camera movement when shooting by hand held camera.

HSM (Hyper-Sonic Motor)

This lens uses a motor driven by ultrasonic waves to provide a quiet, highspeed AF.

DC (DC Lens)

These are special lenses designed so that the image circle matches the smaller size of the image sensor of most digital SLR cameras. Their specialized design gives these lenses the ideal properties for digital cameras, the compact and lightweight construction is an added bonus ! including compact and lightweight construction.

Basic Specs

Min Aperture: F/22
Closest Focusing Distance: 30cm
Dimensions: 74mm x 88.6mm
Weight: 395g

Filter Diameter: 67mm

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