Tamron A084 12-20mm F2.8 Lens for Sony E

Beyond the scope of vision - the overwhelming perspective only 12mm can capture

12-20mm F2.8: ultra-wide built for the field, pro performance minus the weight  

The defining feature of the 12-20mm F2.8 (Model A084) for full-frame mirrorless cameras is its ultra-wide focal range, starting at a remarkable 12mm. While 14mm or 16mm lenses are wide, the expansive 12mm perspective provides an unparalleled sense of scale. It allows you to emphasize perspective and capture the world with dynamic intensity -  ideal for everything from majestic architecture to vast, sweeping landscapes. Furthermore, the 12-20mm F2.8 maintains a bright F2.8 maximum aperture throughout the entire zoom range. Whether you are shooting star-filled night skies or dimly lit interiors, this lens excels in every environment.

Stunning corner-to-corner resolution for astrophotography and nightscapes
The optical design delivers exceptional optical performance. It features a sophisticated arrangement of specialized elements, including one XGM (eXpanded Glass Molded Aspherical) and three GM (Glass Molded Aspherical) lens elements. This is further enhanced by one XLD (eXtra Low Dispersion) and three LD (Low Dispersion) lens elements to effectively suppress various aberrations, minimizing peripheral blurring and colour fringing. In particular, it effectively corrects sagittal coma flare, which is a common issue in nightscapes and astrophotography where point light sources appear distorted at the edges of the frame. By maintaining high sharpness from the centre to the extreme corners, the 12-20mm F2.8 renders every single point of light with crystalline clarity.

Advanced coating technologies
The 12-20mm F2.8 features AX (Anti-reflection eXpand) Coating that achieves a uniform film thickness via vapor deposition across the entire surface of highly curved convex elements. This technology effectively suppresses harmful light, ensuring exceptionally clear and crisp image. The 2nd-generation BBAR-G2 (Broad-Band Anti-Reflection Generation 2) Coating significantly minimizes ghosting and flare, even in challenging backlit conditions. This results in high-contrast, vivid rendering with remarkable pop.

Enhanced mobility for landscapes: a compact and lightweight design
The 12-20mm F2.8 achieves a sophisticated balance between uncompromising image quality and exceptional mobility. Through countless iterations of both optical and mechanical redesign, we have achieved a remarkably compact form factor - measuring just 119.3mm in length and weighing only 570g. By fine-tuning individual components at the micron level and conducting exhaustive durability testing, we have ensured that this 12-20mm F2.8 meets the highest standards of strength and reliability. Whether you are trekking up a mountain or setting up for a night under the stars, this lens significantly lightens your load without sacrificing performance.

Comprehensive control features to meet professional demands 
* Custom Switch / Focus Set Button / Connector Port (USB Type-C): used in conjunction with the Tamron Lens Utility application, these allow you to customize lens functions and assign practical features for both video and still photography, supporting a more versatile shooting experience.
* AF/MF Switch: allows for instantaneous switching between autofocus and manual focus. This intuitive control ensures your shooting rhythm remains uninterrupted.
* MF Lock Switch: disables the focus ring to prevent accidental focus shifts. This is especially critical during long-exposure tasks like astrophotography, where maintaining a precise focus point is vital.
* Zoom Lock Switch: locks the zoom at either the 12mm wide end or 20mm longer end. This stabilizes your intended composition at these frequently used focal lengths, preventing unintended movement during a shoot. The lock can be quickly disengaged by simply rotating the zoom ring, allowing for a seamless transition to your next shot.
* Click ON/OFF Switch: toggles the clicking sound and feel of the aperture/control ring, allowing you to match your operating style to stills or video. ON provides tactile feedback for each increment, making it easier to select specific settings and enhancing operability for still photography. OFF enables smooth, silent ring rotation for natural-looking exposure and bokeh transitions during video recording.
* Iris Lock Switch (Sony E-mount only): locks the aperture ring at the "A" position on the aperture scale, or within the manual range between "F2.8 - F16." This allows you to choose whether to control the aperture via the camera body or the lens ring When locked at "A" (Auto) the aperture is controlled via the camera body. When locked within the manual range (F2.8 - F16) the aperture is controlled via the lens ring.
* Aperture Ring (Sony E-mount only): provides intuitive, tactile control over aperture settings, allowing the photographer's intent to be reflected instantly.

High-speed, high-precision and quiet performance: equipped with VXD linear motor focus mechanism
Featuring the VXD (Voice-coil eXtreme-torque Drive) linear motor focus mechanism, the 12-20mm F2.8 delivers high-speed and high-precision autofocus performance. Its exceptional responsiveness and agility - hallmarks of linear motor technology - ensure you never miss a critical moment. Note: operational sounds may be recorded in video depending on the shooting environment.

Stunning close-up performance: unleashing the dynamism of ultra wide-angles
The 12-20mm F2.8 maintains exceptional close-range shooting capabilities throughout its zoom range, with an MOD (Minimum Object Distance) of just 0.18m at the 12mm wide end and 0.28m at the 20mm longer end. At its closest, you can get as near as 50mm from the front of the lens to your subject. This allows for powerful, dramatic expressions - capturing the foreground subject with exaggerated scale while sweeping in the vast background for a truly dynamic perspective.

Compatible with Tamron Lens Utility: seamless support for video and stills
The 12-20mm F2.8 is compatible with the dedicated Tamron Lens Utility application, allowing you to assign practical functions for both video and still photography directly to the lens. This eliminates the need for external video equipment or previously required complex setups, streamlining your creative workflow and expanding your shooting possibilities.

Mastery of light: the artistry of a 12-blade circular diaphragm
The 12-20mm F2.8 features a 12-blade diaphragm, meticulously engineered for exquisite light rendering. When shooting near maximum aperture, it produces stunningly smooth, circular bokeh from point light sources. Furthermore, when stopped down for nightscapes and cityscapes, it creates sharp 12-pointed starburst effects, adding a touch of elegance to your image.

Evolution of form: introducing the "Toned Profile Next" lens design
The 12-20mm F2.8 introduces "Toned Profile Next," taking Tamron’s signature "Toned Profile" design philosophy to the next level. The aesthetic has evolved from a "lean and muscular silhouette" into a "mechanical style that resonates with the preferences of modern users." This refined exterior combines a sleek, sophisticated look with the rugged functionality demanded by today's photographers.

Integrated flower-shaped lens hood and locking front lens cap
The 12-20mm F2.8 features a built-in, flower-shaped lens hood designed to effectively minimize flare and ghosting. By shielding the lens from stray light, it allows the optical system to deliver its maximum performance and clarity. The dedicated locking front lens cap features a secure locking mechanism. Designed to fit perfectly over the integrated hood, it ensures the lens remains protected and can be carried with total peace of mind.

Integrated rear filter holder 
The lens mount is equipped with a dedicated rear filter holder, allowing for the use of commercially available sheet-type filters. Users can simply cut a filter sheet to the required size and insert it into the holder for expanded creative control. It is useful for long-exposure photography.

Soft wrapping cloth for scratch resistance
The 12-20mm F2.8 comes with a wrapping cloth to help protect the lens in your bag. The fabric features a self-gripping surface that adheres to itself, allowing you to fold it neatly around the lens to protect it from surface dust and scratches. It is compact and folds down easily when not in use, making it a convenient accessory for transport. Please be sure to read the instruction manual before use.

Supports key camera functions
For Sony E-mount this includes:
* Fast Hybrid AF: an autofocus system that combines the traditional Contrast Detection AF with Phase Detection AF.
* Eye AF: a feature that allows the camera to automatically focus on the eyes of a subject.
* Direct Manual Focus (DMF): a feature on Sony cameras that allows you to adjust focus after the camera's autofocus system has locked onto a subject.
* In-camera Lens Correction (Shading, Chromatic Aberration, Distortion)
* AF Assist: a feature that combines autofocus and manual focus to help you focus on your subject. It's especially useful for videographers.
Note: features vary by camera. Please consult your camera’s instruction manual for details. If your camera has a lens correction setting (e.g., "Lens Compensation" or similar), please ensure it is set to "ON" or "AUTO." Please update the firmware to the latest version.

Model A084 - 12-20mm F2.8 for Sony E-mount full-frame mirrorless interchangeable lens cameras
Angle of view (diagonal): 121°58'-94°30' (for full-frame mirrorless format)
Optical construction: 17 elements in 12 groups
Aperture blades: 12 (circular diaphragm)
Minimum aperture: F16
Minimum object distance: 0.18m (wide) / 0.28m (tele)
Maximum magnification ratio: 1:5.8 (wide) / 1:9.1 (tele)
Filter size: n/a (integrated rear filter holder)
Maximum diameter: 90mm
Length: 119.3mm 
Weight: 570g 
Mount compatible: Sony E-Mount
Standard accessories: front cap, rear cap, wrapping cloth (plus integrated flower-shaped hood, non-removeable)

Download user manual from Attachments