Sigma 10-20mm f/3.5 Ex DC HSM Lens for Pentax **
Ultra wide-angle zoom from 102.4* degrees
The 10-20mm F3.5 EX DC HSM lens offers photographers greater freedom of expression by rotating the zoom ring. It is a very powerful tool for architectural, indoor and landscape photography.
※ The angle of view changes depending on which camera model the lens is attached to.
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.Exaggerated perspective
This ultra wide-angle lens allows photographers to create an exaggerated perspective between the subject and the background to emphasize, for example, expanses of a landscape.Large F3.5 aperture through the entire zoom range
The large, constant aperture of F3.5 provides a bright image in the viewfinder, which helps photographers easily check focusing and composition.Petal-type Hood
An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the included petal-type lens hood which blocks out extraneous light.Ultra wide-angle zoom lens with a large,constant aperture of F3.5,designed specifically for digital SLR cameras
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. It's wide-angle of view from 102.4*degrees produces striking images with exaggerated perspective, enabling photographers to emphasize the subject. ELD (Extraordinary Low Dispersion) glass, SLD (Special Low Dispersion) glass and aspherical lenses provide excellent correction of all types of aberrations. The super multi-layer lens coating reduces flare and ghosting and creates high image quality throughout the entire zoom range. The HSM (Hyper Sonic Motor) ensures fast and quiet autofocus, while allowing full-time manual focus override. * The angle of view changes depending on which camera model the lens is attached to.
|
Lens construction |
13 elements in 10 groups |
|
Angle of view（DC） |
109.7 - 70.7° |
|
Number of diaphragm blades |
7 Blades |
|
Minimum aperture |
F22 |
|
Minimum focusing distance |
24cm / 9.4in. |
|
Maximum magnification ratio |
1:6.6 |
|
Filter size |
⌀82mm |
|
Dimensions |
⌀87.3mm × 88.2mm / |
|
Weight |
520g / 18.3oz. |
Lens Construction
Distortion
MFT Chart
Vignetting
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