Tamron 11-20mm f/2.8 Di III-A RXD Lens for Sony E

  • £699.00
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Tamron 11-20mm f/2.8 Di III-A RXD Lens for Sony E

  • Sony E-Mount / APS-C Format
  • 17-30mm (35mm Equivalent)
  • Aperture Range: f/2.8 to f/16
  • 1x XLD, 2x GM Asph., and 2x LD Elements
  • BBAR-G2 Lens Coating
  • Rapid eXtra Silent Stepping Drive Motor
  • Weather-Sealed Construction
  • Rounded 7-Blade Diaphragm
  • 67mm Filter Diameter
  • Petal-Type Lens Hood Included

The Tamron 11-20mm f/2.8 Di III-A RXD Lens for Sony E features the world's first f/2.8 maximum aperture for Sony E-mount APS-C mirrorless in this category and has a compact and lightweight design.

This ultra-wide lens is particularly suitable for landscape, astrophotography, and architectural shooting. Its bright f/2.8 constant maximum aperture complements this range and affords increased control over depth of field along with enhanced low-light performance. 

Bright optics

Tamron’s 11-20mm lens is the world's first constant f/2.8 ultra-wide-angle zoom lens for APS-C mirrorless cameras. Despite this claim it remains compact, lightweight and very practical. With its usefulness derived from a compact, lightweight design with fast aperture the 11-20mm provides an exciting shooting experience with greater freedom in diverse shooting situations including low light.

Compact and lightweight

The 11-20mm is only 86.2mm long and weighs just 335g. which is a remarkably compact and lightweight combination for this type of wide angle lens. When used with an APS-C mirrorless camera it enables photographers to enjoy a responsive system without being hindered by size or weight. It provides a comfortable user experience for still photography and for shooting video using a small tripod or gimbal stabiliser.

Excellent optical performance

The 11-20mm construction includes 12 glass elements arranged into 10 groups. Two precisely located GM (Glass Moulded Aspherical) lens elements assure high resolution across the entire image. In addition, the lens incorporates one XLD (eXtra Low Dispersion) and two LD (Low Dispersion) elements to produce sharp images with well controlled optical aberrations. It also features the BBAR-G2 (Broad-Band Anti-Reflection Generation 2) Coating that suppresses ghosting and flare to a minimum level and reveals the minute details of objects even when the subject is backlit. This also results in pleasingly high contrast well saturated colours.

Close Focus Capabilities

This model boasts an MOD (Minimum Object Distance) of just 15cm at 11mm focal length and 24cm at the 20mm end. This results in more versatile close-up performance than existing ultra-wide-angle zoom lenses at their widest focal length. At the widest 11mm setting it has an astonishing maximum magnification ratio of 1:4 that enables wide-angle macro photography that exploits the perspective unique to ultra-wide-angle lenses, while also leveraging the expressive bokeh provided by the fast, bright maximum aperture of this lens.

Quiet and fast RXD focussing for stills and video

The RXD (Rapid eXtra-silent stepping Drive) uses an actuator to precisely control the angle of the motor allowing it to directly drive the focusing lens without passing through a reduction gear. A sensor that precisely detects the position of the lens enables high-speed and accurate AF, which is ideal when shooting continually moving subjects or recording video.

Moisture-Resistant Construction and Fluorine Coating

In support of outdoor photography the lens includes Tamron’s Moisture resistant construction. The front surface of the lens element is also coated with a protective fluorine compound that is water- and oil-repellent.

In the box

  • 1 x Tamron 11-20mm F/2.8 Di III-A RXD Lens
  • 1 x Flower-shaped hood
  • 1 x Front Lens Cap
  • 1 x Rear Lens Cap

Tamron 11-20mm F/2.8 DI III-A Specs

Focal Length 11 to 20mm (35mm Equivalent: 16.5 to 30mm)
Maximum Aperture f/2.8
Minimum Aperture f/16
Lens Mount Sony E
Lens Format Coverage APS-C
Angle of View 105° 20' to 71° 35'
Minimum Focus Distance 15 cm
Maximum Magnification 0.25x
Macro Reproduction Ratio 1:4
Optical Design 12 Elements in 10 Groups
Diaphragm Blades 7, Rounded
Focus Type Autofocus
Image Stabilization No
Filter Size 67 mm (Front)
Dimensions (ø x L) 73 x 86.2 mm
Weight 335 g


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