Sigma 18-125mm f/3,8-5,6 DC OS HSM Specifications

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Name Sigma 18-125mm f/3,8-5,6 DC OS HSM

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Manufacturer Sigma
Release Date and Price
Release Year 2008
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Lens Type
Lens Type Normal Zoom Lens
Zoom or Prime Zoom lens (with the ability to zoom in and out)
Mount and Compatibility
Mount Canon (see compatible cameras)
Nikon (see compatible cameras)
Compatibility Designed for APS-C cameras (see compatible cameras)
Closest Focusing Distance 35 cm
Autofocus (AF) Yes
Built-in autofocus (AF) motor Yes (more info)
Maximum aperture f/3,8-5,6
The lens aperture and brightness varies at different focal lengths.
f/3,8 at 18 mm
f/5,6 at 125 mm
(Read more)
Elements: 16 elements / 12 groups
Focal Range: 18-125 mm

This is a "DC" lens, designed for APS-C sensors, and will have a focal length equivalent to: 
On Canon cameras: 29-200 mm
On Nikon cameras: 27-188 mm

Read more on the cameras impact on the perceived focal length
Diameter 74 mm
Length 88 mm
Weight 505 g (see the total weight, camera+lens)
Image stabilization Yes, OS
Filter Filter Thread, 67 mm
Lens Hood LH730-02 (included)
Tripod mount No (Read more)
Weather sealing No

Product description from Sigma

At launch 2008 Sigma wrote this regarding Sigma 18-125mm f/3,8-5,6 DC OS HSM:

"Sigma’s 18-125 F3.8-5.6 DC OS HSM is a compact, high performance zoom lens for digital SLR cameras. Its light weight package is perfect those times when you want to lighten your lens load but still require a quality product that will deliver great images. At the wide angle end its perfect for scenic, landscape and group photography. At the long end, it can be used for candid portraits, sports action or great shots at the zoo. Roughly equivalent to a 24 to 200mm lens in the larger format cameras. Two Aspherical glass elements offer correction for distortion & to maintain its compact design, SLD (Special Low Dispersion) glass elements provide optimum color correction & sharpness throughout the entire zoom range, Super Multi-Layer lens coating reduces flare and ghosting and assures high image quality throughout the entire zoom range. This might be all the lens you’ll ever need to take great pictures.

For use with smaller chip APS-c cameras only

Offers Sigma’s OS System (Optical Stabilization) allowing handheld photography even in low-light situations

HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus

Excellent for capturing small objects with a minimum focusing distance of 13.8 at all focal lengths & produces a maximum magnification ratio of 1:3.8

Extremely compact design weighing approximately one pound & measures only 3.5 inches in length.

A lens hood and front & rear lens caps are included with the lens."

Product Page (Sigma):

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