Sigma 18-125mm f3.5-5.6 DC OS reviews: Lens
Also known as: 18-125mm f3.5-5.6 DC OS
Sigma 18-125mm f3.5-5.6 DC OS (Canon AF)
Covers a useful focal length range and features Sigma’s OS (Optical Stabiliser) technology. Designed for digital SLRs with APS-C sized sensors.
Optical Stabiliser (OS) Technology
This features two motion sensors (horizontal and vertical) and makes corrective adjustments to the image stabilising lens group. The net effect is the equivalent of an extra four stops faster in exposure.
Uses both aspherical lens elements and SLD (Special Low Dispersion) glass to correct aberrations and give excellent colour accuracy and image sharpness.
The Sigma HSM (Hyper Sonic Motor) gives fast and quiet operation, ideal when shooting action and closeup shots. Its inner focus design also means that the lens barrel does not rotate during focusing making filter use much easier.
Stops the lens extending due to its own weight.
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