TAMRON 28-200mm F2.8-5.6 A071: World’s First F2.8 All-in-One Zoom

The World’s First F2.8 All-in-One Zoom for Full Frame

The defining feature of the TAMRON 28-200mm F2.8-5.6 A071 is its combination of a wide zoom range and fast F2.8 aperture.

At 28mm, the lens opens to F2.8, providing a bright aperture for low-light shooting, subject isolation and creative background blur. As the focal length increases, the maximum aperture changes to F3.5 at 50mm, F4.5 at 100mm and F5.6 from 150mm through 200mm.

TAMRON’s “world’s first” claim refers to the maximum aperture among currently available all-in-one interchangeable zoom lenses with a zoom ratio of seven times or greater, based on information available in May 2020.

One Lens from 28mm to 200mm

The 28-200mm F2.8-5.6 covers a broad range of focal lengths in a single lens.

At 28mm, photographers can capture expansive landscapes, architecture, travel scenes and environmental subjects. Moving through the zoom range provides useful standard and short-telephoto perspectives before reaching 200mm for distant subjects and tighter compositions.

This wide range makes the lens suitable for photographers who want to reduce lens changes while traveling or shooting everyday subjects.

The A071 can cover everything from wide-angle landscapes to portraits, snapshots and telephoto compositions without requiring a second lens.

Compact Design for Travel Photography

Despite its extensive zoom range, the TAMRON 28-200mm A071 measures only 117mm in length and weighs approximately 575g.

Its compact size is one of the key advantages of the lens for travel and everyday photography. Instead of carrying separate wide-angle, standard and telephoto lenses, photographers can use one lens to cover a broad range of focal lengths.

The lens also uses a 67mm filter size, shared by many TAMRON mirrorless lenses, allowing photographers to use compatible filters across multiple lenses.

F2.8 at the 28mm Wide End

The F2.8 maximum aperture at 28mm gives the A071 an advantage over conventional all-in-one zoom lenses.

A wider aperture allows more light to reach the camera’s sensor, which can be useful when shooting indoors, during evening scenes or in other situations where available light is limited.

The F2.8 aperture can also help photographers create a shallower depth of field at the wide end, allowing subjects to stand out from their surroundings.

As the lens is zoomed toward the telephoto end, the maximum aperture gradually changes to F3.5 at 50mm, F4.5 at 100mm and F5.6 from 150mm through 200mm.

Close-Up Shooting from 28mm to 200mm

The A071 offers impressive close-focusing performance for an all-in-one zoom.

At 28mm, the minimum object distance is only 0.19m, with a maximum magnification ratio of 1:3.1.

At the 200mm telephoto end, the lens can focus as close as 0.8m, achieving a maximum magnification ratio of 1:3.8.

This allows photographers to get close to subjects while maintaining the convenience of a wide-range zoom.

At 28mm, the combination of close focusing and F2.8 aperture can also create strong perspective effects, with the subject appearing large against a wider background.

High-Resolution Optical Performance

The 28-200mm F2.8-5.6 A071 uses an optical construction of 18 elements in 14 groups.

TAMRON incorporates special lens elements, including XLD (eXtra Low Dispersion) and LD (Low Dispersion) elements, to help control chromatic aberrations and maintain high image quality throughout the zoom range.

The lens also uses BBAR (Broad-Band Anti-Reflection) Coating to help reduce ghosting and flare, supporting clear and high-contrast images in challenging lighting conditions.

The result is an all-in-one lens designed to deliver consistent optical performance from 28mm through 200mm.

RXD Autofocus for Photography and Video

The A071 uses TAMRON’s RXD (Rapid eXtra-silent stepping Drive) autofocus system.

RXD uses a stepping motor unit and a sensor that precisely detects the position of the focusing lens. This enables high-speed and accurate autofocus while keeping operation quiet.

The autofocus system is designed to support both still photography and video recording.

Its quiet operation is particularly useful when recording video in environments where autofocus sounds could otherwise be picked up by the camera’s microphone.

A Versatile Lens for Everyday Photography

The broad focal-length range makes the TAMRON 28-200mm Sony E lens suitable for many types of photography.

Travel Photography

The 28-200mm range can cover most everyday travel situations without requiring frequent lens changes.

Photographers can capture wide city scenes at 28mm, everyday subjects at standard focal lengths and distant details at 200mm.

Landscapes

The 28mm wide end provides a broad field of view for landscapes and scenic compositions.

The lens can also be zoomed toward 50mm and beyond when a tighter composition is needed.

Portraits

Longer focal lengths can provide flattering perspectives and help isolate subjects from their surroundings.

The telephoto end also makes it possible to create more compressed compositions while maintaining a comfortable shooting distance.

Nature and Outdoor Photography

The 200mm end provides useful reach for outdoor subjects, while the compact design makes the lens easier to carry during extended shoots.

Everyday Photography

For photographers who prefer to travel light, the ability to move from 28mm to 200mm with one lens makes the A071 a practical everyday option.

Support for Mirrorless Camera Functions

The A071 was designed to take advantage of several functions available on Sony mirrorless cameras.

Supported functions include:

• Fast Hybrid AF
• Eye AF
• Direct Manual Focus (DMF)
• In-camera lens correction
• Camera-based lens firmware updates

The availability of individual functions can vary depending on the camera body and firmware version.

Built for Outdoor Use

The TAMRON 28-200mm F2.8-5.6 features Moisture-Resistant Construction and Fluorine Coating.

Moisture-resistant construction provides additional protection for outdoor shooting, while the fluorine coating helps make the front lens surface more resistant to water and oil and easier to clean.

These features complement the lens’s compact design and make it well suited to travel and outdoor photography.

67mm Filter Size

The A071 uses a 67mm filter diameter, which is shared by many TAMRON mirrorless lenses.

This common filter size allows photographers who use multiple compatible TAMRON lenses to share accessories such as polarizing and protective filters.

For travel photographers, this can reduce the amount of equipment that needs to be carried.

A New Chapter in TAMRON’s All-in-One Zoom History

The A071 is part of TAMRON’s long history of developing all-in-one zoom lenses.

TAMRON introduced its original AF 28-200mm F/3.8-5.6 Aspherical (Model 71D) in 1992. The compact design and broad focal-length range helped establish TAMRON as a pioneer in the all-in-one zoom category.

The Model A071 continues that legacy with a modern full-frame mirrorless design, combining a 28-200mm range with an unprecedented F2.8 maximum aperture at the wide end.

The model number A071 also references the original “71” designation, connecting the lens to TAMRON’s earlier 28-200mm all-in-one zoom.