Show your distinctive, wide point of view
Spectacular F/2.8 wide-angle, fixed focal lens for Sony E-mount full-frame mirrorless cameras
The 20mm F/2.8 Di III OSD M1:2 (Model F051) makes it possible to shoot up close with a wide-angle lens. This lens is your key to the exciting universe of wide-angle photography. The wide-angle field-of-view provided by the 24mm focal length devours expansive scenery, landscapes and urban scenes; it’s the perfect general-purpose wide-angle lens! This versatile lens suits many different shooting styles, including candid snapshots. Because it’s light weight and compact, it’s easy to carry—and that’s a huge benefit when you have to pack light or for all-day shooting adventures. The MOD (Minimum Object Distance) is only 0.12m (4.7 in) so you can move in close and capture one-of-a-kind shots. The F/2.8 helps you to create unique close-ups with the lens’s impressively beautiful bokeh in the background. In addition to the F/2.8 aperture, the Model F051 is constructed using special glass materials including LD (Low Dispersion) and GM (Glass Molded Aspherical) lens elements effectively arranged to quash aberrations. The Model F051 provides outstanding optical performance across the entire frame, and delivers a sharp image, right down to the texture of the subject. With Moisture-Resistant Construction and dirt-resistant Fluorine Coating, photographers can shoot confidently outdoors. This lens opens a whole new, fascinating world of expression.
 
One of the key features that makes this lens so exciting is its amazing ability to shoot close-ups. With this lens, you can get closer to an object than you’d ever imagined. At the 0.12m (4.7 in) MOD, the lens achieves its maximum magnification ratio of 1:2. You’ll never again be frustrated because you cannot get close to an object while shooting. This remarkable performance allows users to create compositions that exploit dramatic perspective (closer subjects are larger, and distant ones are smaller) and that are unique to wide-angle lenses. By getting close to an object, you can produce a one-of-a-kind photo and leverage the beautifully blurred background bokeh.
 
The extreme portability enhances the limitless versatility of the lens
Take it with you anywhere. This lens travels as well as it performs. And because it’s matched to lightweight full-frame mirrorless cameras, your entire system becomes light, fast and nimble. It has a very compact body, weighing just 215g (7.6 oz) and an overall length of 64mm (2.5 in). It’s comfortably portable, highly maneuverable and amazingly easy to use and compose. Because the overall length does not change when focusing, you can get as close to an object as you need to without fear of accidentally bumping the front element. The lens has the same 67mm filter diameter as the other members of the series of Tamron high-speed lenses for Sony E-mount cameras. So you can swap filters (like polarizers), lens caps and other accessories for convenience. Who says great things can’t come in small packages
 
Superb image quality in an extra-wide-angle
This lens provides outstanding optical performance and overall image quality, characteristics relentlessly demanded from a prime, fixed focal lens. The expert arrangement of the LD and GM specialized glass elements greatly controls aberrations, including chromatic aberrations. Tamron’s proprietary BBAR (Broad-Band Anti-Reflection) Coating reduces ghosting and flare, which can otherwise occur when taking a photo against the sun. Moreover, leveraging your camera body’s features* it delivers, throughout the frame, high resolution performance that maximizes the benefits of the latest high-megapixel cameras. Whether shooting on the street, full-scale landscapes or architectural photography, this lens delivers exceptionally crisp, colorful and beautiful images and helps you fulfill your creative ambitions.

*When shooting with the camera’s lens correction function enabled.
 
AF with Optimized Silent Drive quietly tracks constantly moving subjects with ease
The AF drive employs a newly developed OSD (Optimized Silent Drive) to ensure silent operation. Operating noise has been appreciably reduced thanks to a revamped and optimized AF unit.
The precision and speed of autofocusing are increased to ensure accurate focus even when tracking constantly moving subjects.
AF motor unit "OSD"