Top features: - Wide angle focal length makes it ideal for landscapes and architecture - Beautiful background defocusing with a circular 7-blade aperture - Superior image quality from special coatings and lens element combinations - Faster, more accurate focusing Wide angle focal lengthMade for use with Sony A-mount cameras, the Sony SAL20F28 20 mm f/2.8 Wide-angle Prime Lens is a great tool for expansive scenery or impressive architecture.You'll be able to get more detail in with a real sense of scale with a short focal length that's been exactingly corrected to make sure that your images stay free from distortion even while delivering a compelling, exaggerated perspective.Beautiful background defocusingDefine your subjects sharply against an artistic bokeh. The lens features a circular, 7-bladed aperture to ensure smoother effects, rather than then standard polygon-shaped aperture.Superior image qualityEnjoy high-quality, artefact-free results with each photo you take - the SAL20F28 20 mm Lens features 10 elements in 9 groups for refined optical performance, aided by coatings that reduce internal light reflections.Faster, more accurate focusingYour images will look sharper with a rear focusing mechanism that stops the lens barrel from moving and allows autofocus to work faster with compatible cameras.