Sigma 18-250mm F3.5-6.3 DC OS HSM Pentax
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Sigma’s unique OS (Optical Stabiliser) technology
This lens is equipped with Sigma’s own OS function. This function uses two sensors inside the lens to detect vertical and horizontal movement of the camera and works by moving an optical image stabilising lens group to effectively compensate for camera shake. It also automatically detects movement of the camera and compensates for camera shake when shooting moving subjects such as motor sports.
Excellent Optical Performance
A Special Low Dispersion (SLD) lens and three aspherical glass elements provide excellent correction for all types of aberrations and produce a high level of optical performance throughout the entire zoom range. The super multi-layer lens coating reduces flare and ghosting. It also produces an optimum, neutral colour balance.
Close-up photography
This lens has a minimum focusing distance of 45cm (17.7”) throughout the entire zoom range and a maximum magnification of 1:5.3, making it very convenient for taking close-up pictures.
Inner focusing system
An inner focusing system provides high performance and convenience. The non-rotating lens barrel perfectly suits the matched petal-type lens hood (supplied) and circular polarising filters.
Zoom lock switch mechanism
A zoom lock switch mechanism is provided to prevent the lens from creeping due to its own weight.
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