cCommack, NY—Tamron launched the 28-200mm F2.8-5.6 Di III RXD (model A071)—an all-in-one (AiO) zoom lens for Sony E-mount full-frame mirrorless cameras. The lens is scheduled to ship June 25. However, due to the spread of Covid-19, the release date or the product supply schedule could change.
The new 28–200mm f/2.8–5.6 is a distillation of Tamron’s accumulated all-in-one zoom expertise. It is specifically for daily use an all-in-one zoom lens on a full-frame mirrorless camera. Furthermore, Tamron chose model A071 as the name in a nod to “71,” representing the original compact AiO zoom.
Notably, the 28–200mm f/2.8–5.6 is the first AiO zoom lens to achieve a maximum aperture of f/2.8 at the 28mm wide-angle end. “To assure superb optical performance, it features a precise arrangement of special lens elements that accommodate the increasingly high resolutions of today’s digital cameras,” announced Tamron. “Enabling high-quality image rendering throughout the zoom range, the lens responds to users’ photographic expressions in powerful style.”
What’s more, with its 4.6-inch length, 20.3-ounce weight and 67mm filter diameter, the lens provides portability. When combined with a compact, lightweight full-frame mirrorless camera, it is a solution for daily use, travel, sports as well as nature photography. It also offers the convenience of an all-in-one zoom, incorporating various angles of view from wide to telephoto in a single lens.
Tamron 28-200mm F2.8-5.6 Di III RXD Key Features
“A remarkable first for an all-in-one zoom lens: the 28–200mm f/2.8–5.6 achieves a fast f/2.8 aperture at the 28mm wide-angle end,” added Tamron. In addition, maximum apertures at intermediate zoom ranges are f/3.5 at 50mm; f/4.5 at 100mm; and f/5.6 at 150–200mm.
Furthermore, Tamron’s full-frame mirrorless camera lens series was developed with the overall goal of balancing high performance with convenience. In addition to the standard 67mm filter diameter, and leveraging camera-integrated image stabilization, engineers concentrated on compact size and light weight.
Moreover, the zoom contains 18 elements in 14 groups. An assortment of special lens elements includes GM (glass molded aspherical); hybrid aspherical, XLD (eXtra-low dispersion); as well as LD (low dispersion) lens elements. In addition, they are arranged to effectively control chromatic and other aberrations, to enable high resolving power.
Tamron’s BBAR (broad-band antireflection) coating also provides antireflection properties to effectively reduce ghosting and flare. What’s more, in-camera correction features mitigate distortion and shading, to achieve high image quality from edge-to-edge at all zoom settings.
The lens also delivers close-up performance. At the 28mm wide-angle end, the MOD (minimum object distance) is 7.5 inches; it additionally has a 1:3.1-maximum magnification. Consequently, photographers can move in close, so the subject is large while simultaneously producing a blurred background. Close-up shooting is achievable at the telephoto end as well, with an MOD of 31.5 inches and maximum magnification ratio of 1:3.8.
Tamron also incorporated an AF drive sensor that accurately detects the position of the lens while the RXD motor unit optimizes AF control. As a result, the lens offers fast, accurate autofocus on continuously moving subjects as well as when filming video. The quiet operation also eliminates extraneous sounds during video recording.
The lens also has seals on its mount area and other critical locations to deter the infiltration of moisture and/or raindrops. Its moisture-resistant construction affords an additional layer of protection when shooting outdoors in adverse weather.
In addition, a protective fluorine compound coats the front surface of the lens element; the compound has water- and oil-repellent qualities. Subsequently, its surface is easier to wipe clean and less vulnerable to the damaging effects of dirt, moisture or oily fingerprints. The lens additionally features a zoom lock switch to prevent unwanted barrel extension during transportation.
Tamron’s new 28–200mm f/2.8–5.6 AiO lens is compatible with features that are specific to certain mirrorless cameras. These include fast hybrid AF systems; eye AF technology; direct manual focus; in-camera lens correction (shading, chromatic aberration, distortion); as well as camera-based lens unit firmware updates.
The Tamron 28–200mm f/2.8–5.6 Di III RXD has a suggested retail price of $729.