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$476.67

Sigma 17-35mm f/2.8-4 EX DG ASP HSM

Sigma 17-35mm f/2.8-4 EX DG ASP HSM lens
 

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.

 

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 is a large-aperture wide-angle zoom lens that cover an ultra-wide angle of view of 104 degrees. With this lens, Sigma has achieved a minimum focusing distance of 27 cm at all focal lengths and a maximum magnification of 1:4.5. The HSM-equipped model makes fast AF speeds and quiet shoooting a reality and it also features fulll-time manual focus. With one SLD (Special Low Dispersion) glass element and two aspherical lenses, this lens provides excellent correction for distortion as wall as all types of aberration.

Sigma 17-35mm f/2.8-4 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
Stabilizer no
Focal length 17 - 35 mm (2.1× zoom)
Lens construction 16 elements in 13 groups
Angle of view 35mm: 103.7-63.4°
digital: 72.4-39.1°
Number of blades 8
Maximum aperture wide: f/2.8 tele: f/4
Minimum aperture wide: f/22 tele: N/A
Minimum focusing distance 27 cm
Magnification 0.22×
Filter size 77 mm
Size ∅ 83.5 × 88.7 mm
Weight 560 g
Notes
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 no
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 LH825-04
printable lens hood
Tripod adapter N/A
Discontinued yes
Sigma 17-35mm f/2.8-4 EX DG ASP HSM Specification

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