OverviewThe superbly crafted 20mm f/2.8 (SAL20F28) super wide-angle lens offers approximately four times the imaging area of a standard 50mm lens. It has a 94º angle of view when mounted on a 35mm-format SLR and a 70º angle of view when mounted on an APS-C format digital SLR. At smaller apertures the depth of field is so great that this effectively becomes a 'panfocus' lens that can capture foreground and background elements with equal sharpness.
Superior optics suppress image aberration across the focusing range, from infinity in to the minimum shooting distance of just 25cm/9.8-inches. A rear-focusing mechanism enables ultra-fast autofocusing for on-the-fly snapshots, while a circular 7-blade iris assures smooth background defocusing that really makes your subject stand out.
10 elements in 9 groups
Max View Angle
94° (35mm format camera); 70° (DSLR with APS-C sized image sensor)
Minimum Focus Range
Special OrderSuper wide-angle lens
• Circular 7-blade iris
• Rear-focusing mechanism enables ultra-fast autofocusing