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Sigma Wide-angle Zoom lenses for Sony Alpha DSLRs

Zoom lenses with a focal range below 50mm are known as wide-angle zooms. Like wide angle prime lenses with fixed focal lengths, these capture bigger views than normal lenses, which is useful whether you’re trying to photograph a large building from inside or out, a sweeping landscape view, or even just a big group shot. They’re invaluable when you can’t step back any further.

By squeezing more into your photos, wide angle zooms inevitably have greater distortion, especially towards the edges. This may not be noticeable on natural landscapes, but can appear unflattering on portrait shots unless the person (or people) are placed in the middle of the frame. That said, this effect can also produce pleasing results and be used to exaggerate perspective – a popular wide angle technique is to get very close to a foreground subject so it appears large compared to the background. Wide angle zooms also have a large depth of field, which means it’s easier to get lots in sharp focus from close-up to far away.

28mm is the most common wide angle focal length and can produce quite natural-looking results. Focal lengths above this approach a more standard view, while shorter focal lengths produce wider results. A wide-angle zoom will generally cover a variety of focal lengths from modest wide to ultra wide, giving you greater flexibility than a fixed focal length prime lens.

As always, bear in mind any reduction in field due to your DSLRs sensor when choosing a lens. Sony’s APS-C models have a reduction factor of 1.5x. So if you’d like coverage equivalent to 18-36mm, you’ll need to fit them with a 12-24mm lens. Lenses with smaller f-numbers gather more light thanks to their bigger apertures, which makes them better in dim conditions and for minimising the depth-of-field. Bigger apertures however mean a larger, heavier and more expensive lens. Note: Sigma's DC lenses are not compatible with full-frame DSLRs. For a full explanation of lens specifications and examples of coverage at different focal lengths, check out our Camera Labs Lens Buyers Guide.

 



Sigma 8-16mm f4.5-5.6 DC HSM

   
Focal length: 8-16mm
Aperture: f4.5-5.6
Lens mount: A-mount
Equiv on APS-C DSLR: 12-24mm
Full-frame compatible: No
  Anti-shake: No
AF motor: HSM
Closest focus: 24cm
Filter thread: N/A
Lens hood: N/A (fixed)
  Construction: 15 el. / 11 groups
Diaphragm blades: 7
Weight: 555g
Size (diam x length): 75x106mm


Sigma 10-20mm f3.5 EX DC HSM

   
Focal length: 10-20mm
Aperture: f3.5
Lens mount: A-mount
Equiv on APS-C DSLR: 15-30mm
Full-frame compatible: No
  Anti-shake: No
AF motor: HSM
Closest focus: 24cm
Filter thread: 82mm
Lens hood: TBC
  Construction: 13 el. / 10 groups
Diaphragm blades: 7
Weight: TBC
Size (diam x length): 87x88mm



   
Sigma 10-20mm f4-5.6 EX DC

     
Focal length: 10-20mm
Aperture: f4-5.6
Lens mount: A-mount
Equiv on APS-C DSLR: 15-30mm
Full-frame compatible: No
Anti-shake: No
AF motor: requires AF motor in DSLR
  Closest focus: 24cm
Filter thread: 77mm
Lens hood: TBC
Construction: 14 el. / 10 groups
Diaphragm blades: 6
Weight: 465g
Size (diam x length): 84x81mm

 

   
Sigma 12-24mm f4.5-5.6 EX DG Aspherical

     
Focal length: 12-24mm
Aperture: f4.5-5.6
Lens mount: A-mount
Equiv on APS-C DSLR: 18-36mm
Full-frame compatible: Yes
Anti-shake: No
AF motor: requires AF motor in DSLR
  Closest focus: 28cm
Filter thread: N/A
Lens hood: N/A (fixed)
Construction: 16 el. / 12 groups
Diaphragm blades: 6
Weight: 600g
Size (diam x length): 87x103mm


Sigma lenses for Sony DSLRs
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