Sigma 20mm F1.8 EX DG Aspherical RF
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Manufacturer description: The Sigma 20mm F1.8 EX DG Aspherical Macro is a standard wide-angle lens for full-frame and APS-C digital SLRs. Although not a new lens, it remains popular for its combination of good build quality, a usefully fast aperture of F1.8 and decent optics. You don't get Sigma's HSM ultrasonic-type autofocus motor but a clever manual/auto focus clutch gives quick access to manual focus if you need to fine-tune.
|Lens type||Prime lens|
|Focal length||20 mm|
|Lens mount||Canon EF, Nikon F (FX), Pentax KAF, Sigma SA Bayonet, Sony/Minolta Alpha|
|Min focus||0.20 m (7.87″)|
|Weight||520 g (1.15 lb)|
|Length||90 mm (3.52″)|
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