$899.00

Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM

see the whole gallery in large	Full frame 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. Internal Focusing Internally focusing lenses don't change their size while setting focus. 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. Supports drop-in filters 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 award winning, ultra-wide zoom lens starting from 12 mm is ideal for 35 mm, as well as, digital SLR cameras. With an incredible angle of view of 122°, this lens opens up a brand-new world of photography. The HSM equipped model makes fast AF speeds and quiet shooting a reality. It also benefits from full-time manual focus. With four SLD (Special Low Dispersion) glass elements and three aspherical lenses, including two molded glass aspheric elements this lens provides the utmost correction of chromatic and other aberrations, and at the same time delivers superior image quality.

This award winning, ultra-wide zoom lens starting from 12 mm is ideal for 35 mm, as well as, digital SLR cameras. With an incredible angle of view of 122°, this lens opens up a brand-new world of photography. The HSM equipped model makes fast AF speeds and quiet shooting a reality. It also benefits from full-time manual focus. With four SLD (Special Low Dispersion) glass elements and three aspherical lenses, including two molded glass aspheric elements this lens provides the utmost correction of chromatic and other aberrations, and at the same time delivers superior image quality.

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Sigma 12-24mm f/4.5-5.6 EX DG ASP HSM Specification

Sigma 12-24mm f/4.5-5.6 EX DG ASP 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×
Stabilizer	no
Focal length	12 - 24 mm (2× zoom)
Lens construction	16 elements in 12 groups
Angle of view	35mm: 122-84.1° digital: 93.1-54.8°
Number of blades	6
Maximum aperture	wide: f/4.5 tele: f/5.6
Minimum aperture	wide: f/22 tele: N/A
Minimum focusing distance	28 cm
Magnification	0.14×
Filter size	N/A
Size	∅ 87 × 102.5 mm
Weight	600 g
Notes	Sigma, Nikon and Canon mounts have HSM
AF speed	N/A
AF sound
Internal focusing	yes
Internal zoom	N/A
Fix front lens	yes
Mount type	metal
Weather sealed	N/A
Drop in filter	yes
Ultrasonic AF	yes
Stepping motor AF	no
APS-C sized circle	no
Low dispersion lens element	yes
Hard case	N/A
Soft case	N/A
Lens hood	N/A
Tripod adapter	N/A
Discontinued	yes