© 2013 Hans Pfaffenthal, Luxembourg #2

Pfaffenthal, Luxembourg #2

The trick with ultra-wide angle lenses is to keep the camera vertical to avoid any major distortion. This was taken with my Sigma 20mm f/1.8 EX DG Aspherical lens. On my DSLR I compared it with the Sigma 10-20mm f/4-5.6 EX DC lens at 20mm and the Sigma 20mm f/1.8 EX DG Aspherical is the clear winner: a lot less distortion (both are full frame lenses), sharper at all apertures and a f/1.7 to boot!

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