By 20mm, the lens is almost perfectly rectilinear, measuring +0.10% pincushion. It is then pincushion all the way, with +1.47% at 28mm and +1.54% at 35mm. Traditionally, wide-angle lenses would ...

Canon's fourth 'hybrid' f/1.4 prime lens joins the 24mm, 35mm and 50mm Versatile 20mm wide-angle perspective and fast aperture List price is £1,919.99 (US and Australia pricing plus sales start ...

With 35mm kit, any focal length below 20mm was considered an ultra-wide angle lens ... it was still possible to use the lens on the 1.3x sensor of the Canon Canon EOS 1D although the vignetting ...