Tamron 20mm f/2.8 for Sony E Mount Lenses
Capture your most expansive imaginationThe Tamron 20mm F/2.8 Di III OSD M1:2 (Model F050) is the ideal first ultra-wide-angle lens for any photographer. Designed exclusively for Sony E-mount full-frame mirrorless lens cameras, the F050 is a creative tool that dynamically captures scenery by maximizing the perspective unique to ultra-wide-angle lenses. It’s lightweight and compact and provides an incredibly short 4.3 in MOD and a 1:2 maximum magnification ratio, making it possible to get closer to your subjects than you’d ever imagined. With Moisture-Resistant Construction and dirt-resistant Fluorine Coating, photographers can shoot confidently outdoors.
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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 0.11m (4.3 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.

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 220g (7.8 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?
*Our lineups for Sony E-mount cameras with 67mm filter diameter
M1:2 Prime lens
24mm F/2.8 Di III OSD M1:2 (Model F051) >
35mm F/2.8 Di III OSD M1:2 (Model F053) >
High-speed standard zoom lens
17-70mm F/2.8 Di III-A VC RXD (Model B070) >
20-40mm F/2.8 Di III VXD (Model A062) >
28-75mm F/2.8 Di III VXD G2 (Model A063) >
35-150mm F/2-2.8 Di III VXD (Model A058) >
High-speed ultra wide-angle zoom lens
11-20mm F/2.8 Di III-A RXD (Model B060) >
17-28mm F/2.8 Di III RXD (Model A046) >
Telephoto zoom lens
50-400mm F/4.5-6.3 Di III VC VXD (Model A067) >
70-180mm F/2.8 Di III VXD (Model A056) >
70-300mm F/2.8 Di III RXD (Model A047 >
150-500mm F/5-6.7 Di III VXD (Model A057) >
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.


This lens is just one of many Tamron lenses for Sony E-mount cameras. Throughout the lineup you’ll find creative tools that help you enjoy the world of mirrorless cameras and a broader range of photographic possibilities. Small and light weight (the perfect match for mirrorless cameras) they are definitively portable and can easily be all carried together as a complete set that’s ready for every situation. For convenience sake, all of the lenses in the series have the same 67mm filter diameter. You can share the use of a single polarizing (or other) filter and avoid the aggravation of searching through lens caps when changing lenses. Built with convenience and ease-of-use in mind, you’ll be attracted by the compact size and thoroughly dazzled by the outstanding performance.
*Our lineups for Sony E-mount cameras with 67mm filter diameter
M1:2 Prime lens
24mm F/2.8 Di III OSD M1:2 (Model F051) >
35mm F/2.8 Di III OSD M1:2 (Model F053) >
High-speed standard zoom lens
17-70mm F/2.8 Di III-A VC RXD (Model B070) >
20-40mm F/2.8 Di III VXD (Model A062) >
28-75mm F/2.8 Di III VXD G2 (Model A063) >
35-150mm F/2-2.8 Di III VXD (Model A058) >
High-speed ultra wide-angle zoom lens
11-20mm F/2.8 Di III-A RXD (Model B060) >
17-28mm F/2.8 Di III RXD (Model A046) >
Telephoto zoom lens
50-400mm F/4.5-6.3 Di III VC VXD (Model A067) >
70-180mm F/2.8 Di III VXD (Model A056) >
70-300mm F/2.8 Di III RXD (Model A047 >
150-500mm F/5-6.7 Di III VXD (Model A057) >
- Fast Hybrid AF
- Eye AF
- Direct Manual Focus (DMF)
- In-camera lens correction (shading, chromatic aberration, distortion)
- Camera-based lens unit firmware updates
* Features vary by camera. Please consult your camera’s instruction manual for details.
* As of September, 2019.
Tamron 20mm f/2.8 for Sony E Mount Lenses
Technical InformationSpecifications
Model | F050 |
---|---|
Focal Length | 20mm |
Maximum Aperture | F/2.8 |
Angle of View (diagonal) |
94°30'(for full-frame mirrorless format) |
Optical Construction | 10 elements in 9 groups |
Minimum Object Distance | 0.11m (4.3 in) |
Maximum Magnification Ratio | 1:2 |
Filter Size | Φ67mm |
Maximum Diameter | Φ73mm |
Length* | 64mm (2.5 in) |
Weight | 220g (7.8 oz) |
Aperture Blades | 7 (circular diaphragm)** |
Minimum Aperture | F/22 |
Standard Accessory | Flower-shaped hood, Lens caps |
Compatible Mounts | Sony E-mount |
Format | Full-Frame Mirrorless*** |
* Length is the distance from the front tip of the lens to the lens mount face.
** The circular diaphragm stays almost perfectly circular up to two stops down from maximum aperture.
*** will fit APS-C mirrorless
Note: Tamron lenses cannot guarantee functionality with cinema cameras.
Specifications, appearance, functionality, etc. are subject to change without prior notice.
This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation.
Release Date
January, 2020
Optical Construction (10 elements in 9 groups)
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Supplied Accessory

Supplied Accessory