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Sigma 10-20mm f/3.5 EX DC HSM

Sigma 10-20mm f/3.5 EX DC HSM lens
Sigma 10-20mm f/3.5 EX DC HSM lensSigma 10-20mm f/3.5 EX DC HSM lensSigma 10-20mm f/3.5 EX DC HSM lens
 

APS-C sized image

Lenses that create APS-C sized image are designed for digital only. They cannot be used on cameras that have image sensor larger than the APS-C format. These lenses are not suitable for film cameras either.

 

Ultrasonic AF

Lenses with ultrasonic focusing mechanism tend to be quiter and faster than traditionally focusing lenses.

 

No stepping motor AF

Lenses with stepping motor focusing mechanism are better for contrast based focusing, and are quiter and faster than traditionally focusing lenses.

 

One or more Low Dispersion lens element is used

Low Dispersion lens elements help to reduce chromatic aberration.

 

Not stabilized

Image stabilization helps to reduce blur caused by hand shake, especially at high focal length or in low light situations. Image stabilization can give 1 to 3 stop advantage over none stabilized lens, based on the reciprocal rule.

 

Metal mount

Cheaper lenses are usually equipped with plastic mount, while more expensive, professional lenses have metal mount. In general, metal mounts are more durable, and a good thing to have when lenses are changed a lot. When a camera is used mainly with one lens, the material of the lens mount is not that important.

 

The front lens is fixed

The fixed front lens is not rotating during zoom and/or focusing. This allows the photographer to use petal shaped lens hood. Fixed front lenses also make the use of polarization filters a lot easier.

 

No drop-in filter support

Drop-in filters are used in those lenses where either the front lens is too large, or the field of view doesn't permit the use of traditional filters at the front of the lens. Usually bright tele and ultra-wide angle lenses support this filter type.

This super-wide angle lens has a maximum aperture of F3.5 throughout the entire zoon range. Its wide angle of view from 102.4 degrees produces striking images with exaggerated perspective. The maximum aperture of F3.5 is ideal for indoor shooting and it enables photographers to emphasize the subject. Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass element provide excellent correction of color aberration. Four aspherical lenses provide correction for distortion and allow compact and lightweight construction. The Super Multi-Layer coating reduces flare and ghosting.

Sigma 10-20mm f/3.5 EX DC HSM Specification

Available mount(s) Canon EF, Nikon F, Pentax K, Sony / Minolta A, Sigma
Application(s) Landscape, Interiors, Architecture
Category(s) Wide angle zoom
Multiplier 1.5×
Stabilizer no
Focal length 10 - 20 mm (2× zoom)
Lens construction 13 elements in 10 groups
Angle of view 35mm: N/A
digital: 102.4-63.8°
Number of blades 7
Maximum aperture wide: f/3.5 tele: f/3.5
Minimum aperture wide: f/22 tele: f/22
Minimum focusing distance 24 cm
Magnification 0.15×
Filter size 82 mm
Size ∅ 87.3 × 88.2 mm
Weight 520 g
Notes 2 ELD, 1 SLD and 4 aspherical elements. Super Multi-Layer coating
AF speed N/A
AF sound
Internal focusing N/A
Internal zoom N/A
Fix front lens yes
Mount type metal
Weather sealed N/A
Drop in filter no
Ultrasonic AF yes
Stepping motor AF no
APS-C sized circle yes
Low dispersion lens element yes
Hard case not included
Soft case not included
Lens hood LH873-01 (included)
Tripod adapter not included
Sigma 10-20mm f/3.5 EX DC HSM Specification

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Sigma 10-20mm f/3.5 EX DC HSM Sample Photos

Canon EOS-40D + Sigma 10-20mm f/3.5 EX DC HSM; RAW-Lightroom 4

Sigma 10-20mm f/3.5 EX DC HSM Accessories

82 mm Filters

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