Manufacturer description: It’s important to have a high quality ultra-wide angle zoom in a lens kit. Sigma's 10-20mm F4-5.6 EX DC ultra-wide zoom lens for digital SLR cameras is ideal for landscape photography, building interiors, group and party pictures and so much more. Great for working with close foreground subjects as this lens features a minimum focusing distance of 9.4” at all focal lengths ensuring great creative potential. The wide angle view of up to 102º also offers greater freedom of expression.
|Lens type||Zoom lens|
|Focal length||10–20 mm|
|Lens mount||Canon EF, Four Thirds, Pentax KAF, Sony Alpha, Sigma SA, Nikon F (DX)|
|Max aperture||F4.0 - F5.6|
|Min aperture||F22.0 - F32.0|
|Min focus||0.24 m (9.45″)|
|Max magnification||0.15 x|
|Weight||470 g (1.04 lb)|
|Length||81 mm (3.19″)|
Overall the Sigma 10-20mm F4-5.6 EX DC HSM is a solid, well-built lens with good operational characteristics, which justifies its popularity with generally decent imaging results. While its long-running unique selling point of being the only third-party 10mm zoom has now disappeared, and it faces strong competition from Tamron's 10-24mm, the different characteristics of the two lenses means it's still a good option for APS-C users looking for the widest of ultra-wideangle zooms.
Good for: Cropped sensor shooters looking for an affordable, well-built super wide angle zoom lens.
Not so good for: People who are picky about barrel distortion, or shoot in a lot of low-light environments.