Sigma 18-125mm f/3.8-5.6 DC OS HSM

Lens Summary

Brand: Sigma

Also Known As: Sigma 18-125mm f/3.8-5.6 DC OS HSM

Lens Type: Zoom Lens

Format: APS-C / DX

Focus: Autofocus

Lens Mount: Canon EF, Nikon F, Sigma SA

Release Date: 2008-01-31

MSRP Price: $349

Made in: Japan

Infrared Rating: Good

Production Status: In Production

Lens Description: The Sigma 18-125mm f/3.8-5.6 DC OS HSM is a high ratio zoom lens which is designed exclusively for digital SLR cameras This compact high zoom ratio lens incorporates Sigma\'s original OS (Optical Stabilizer) function. This system uses two sensors inside the lens to detect vertical andhorizontal movement of the camera and works by moving an optical image stabilizing lens group to effectively compensate for camera shake. It offers the use of shutter speeds approximately 4 stops slower. It is the ideal lens for several type of photography such as wide-angle, telephoto and close-up. SLD (Special Low Dispersion) glass, a molded glass aspherical lens and two hybrid aspherical lenses provide excellent correction for all types of aberrations. The super multi-layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range. This lens has a minimum focusing distance of 35cm


Sigma 18-125mm f/3.8-5.6 DC OS HSM Specifications

Lens Specifications
Lens TypeZoom Lens
Focal Length18-125mm
Mount TypeCanon EF, Nikon F, Sigma SA
FormatAPS-C / DX
Compatible Format(s)Canon (APS-C), Nikon DX
Compatible with TeleconvertersNo
Zoom Ratio6.94x
Maximum Reproduction Ratio1:3.8
Optical Stabilization (Image Stabilization)No
Aperture Information
Aperture RingNo
Maximum Aperturef/3.8-5.6
Minimum Aperturef/22
Maximum Angle of View (APS-C or smaller format)69.3° - 11.4°
Optical Information
Lens Elements16
Lens Groups12
Diaphragm Blades7
Aspherical Elements2 SLD (Special Low Dispersion) glass elements 1 molded glass aspherical element 2 hybrid aspherical elements
Nano CoatingNo
Super Multi-Layer CoatingNo
Focus Information
FocusAutofocus
Built-in Focus MotorYes
Hyper Sonic Motor (HSM)Yes
Internal FocusingYes
Minimum Focus Distance0.35m
Distance InformationYes
Filter Information
Filter Size67mm
Accepts Filter TypeScrew-on
Physical Characteristics
Weather / Dust SealingNo
Mount MaterialMetal
Tripod CollarNo
Dimensions7.37 x 8.89cm
Weight505g
Other Information
Available in ColorsBlack

Lens Construction

Sigma 18-125mm f/3.8-5.6 DC OS HSM diagram

MTF Chart

Sigma 18-125mm f/3.8-5.6 MTF Chart 18mm Sigma 18-125mm f/3.8-5.6 MTF Chart 125mm

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