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Quiet and fast AF
This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed auto focus as well as full-time manual focus override by rotation of the focus ring.*
*AF will not function if the Pentax camera bodies do not support HSM.
Ultra wide-angle zoom lens with a large, constant aperture of F3.5
This Ultra wide-angle zoom lens has a maximum aperture of F3.5 throughout the entire zoom range, making it suitable for low-light and indoor photography.
|13 elements in 10 groups|
|Angle of view（DC）||109.7 - 70.7°|
|Number of diaphragm blades||7 Blades|
|Minimum focusing distance||24cm / 9.4in.|
|Maximum magnification ratio||1:6.6|
|Dimensions (diameter × length)||⌀87.3mm×88.2mm / 3.4in. x 3.5in.|
|Weight||520g / 18.3oz.|
Corresponding AF Mounts
SIGMA / SONY / NIKON / PENTAX / CANON
DC lenses have an image circle that covers APS-C size image sensors. Not for use on digital cameras having image sensors larger than APS-C size or on 35mm or APS film cameras, as vignetting will occur. The angle of view varies depending on which camera the lens is mounted on. To find the 35mm camera-equivalent focal length, multiply the DC lens focal length by the crop factor (digital multiplier) of 1.5, 1.6, or 1.7, depending on the brand of DSLR camera on which the lens will be used. To find which DC lens is equivalent to a full-frame lens, divide the focal length of the full frame lens by the same crop factor.
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