The Tamron 28-200mm f2.8-5.6 Di III RXD (Model A071) “All-In-One” Zoom for Sony full-frame mirrorless cameras has just been announced. Tamron has been making some fantastic (and very affordable) zooms and compact prime lenses for Sony a7 full-frame cameras lately.
Most Impressive All-Purpose Lens for Sony Full-Frame?
The new Tamron 28-200mm f2.8-5.6 Di III RXD is the first all-in-one-zoom* in the world to achieve a maximum aperture of f2.8 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.
The lens does extend when zoomed out, as expected, but the fact that Tamron engineers have managed to basically keep it the same size as the 28-75mm f2.8 is more than impressive. The new 28-200mm is also almost the same weight as the 28-75mm, but it offers more than twice the range.
Telephoto Range in a Standard Zoom Form-Factor!
The penalty for the increased range is slow maximum aperture of f5.6, but that’s a small price to pay for keeping the lens at 500+ grams and 117mm in length. That’s a telephoto zoom in a standard zoom body!
Enabling high quality image rendering throughout the zoom range, the lens responds to users’ photographic expressions in powerful style.
The 28-200mm F2.8-5.6 delivers superior close-up shooting performance for an all-in-one zoom. At the 28mm wide-angle end the MOD (Minimum Object Distance) is 0.19m (7.5 in), achieving a maximum magnification ratio of 1:3.1.
Fast Hybrid AF and Eye AF Optimized
Moreover, with its 117mm (4.6 in) length, 575g (20.3 oz) weight and filter diameter of a mere 67mm, the 28-200mm offers excellent portability.
And what is even better is that Tamron are keeping the 67mm unified front filter thread across their Sony FE zoom range. Naturally, this is hugely beneficial as you don’t have to fiddle with filter step-up rings or adapters, just use the same size across the range.
In addition, Tamron’s new 28-200mm is compatible with many of the advanced features specific to certain mirrorless cameras such as:
- Fast Hybrid AF
- Eye AF
- Direct Manual Focus (DMF)
- In-camera lens correction (shading, chromatic aberration, distortion)
- Camera-based lens unit firmware updates
Advanced Optical Design with 18 Elements
Furthermore, the optical design of the new Model 071 lens incorporates 18 elements arranged in 14 groups. Also, special lens elements include GM (Glass Molded Aspherical), hybrid aspherical, XLD (eXtra Low Dispersion) and LD (Low Dispersion) lens elements. Those have been precisely arranged to effectively control chromatic and other aberrations, enabling high resolving power.
Meanwhile, the BBAR (Broad-Band Anti-Reflection) Coating provides powerful anti-reflection properties to effectively reduce ghosting and flare, resulting in clear and crisp images.
In-camera correction features are utilized to mitigate distortion and shading to achieve uniformly high image quality from edge-to-edge at all zoom settings.
Moisture-Resistant & Zoom Lock Switch
Moreover, the new zoom lens is sealed towards the lens mount at the back and other critical locations to deter infiltration of moisture and/or rain drops.
Also, the front surface of the lens element is coated with a protective fluorine compound that has excellent water- and oil-repellant qualities. Naturally, this makes the lens surface easier to clean and less vulnerable to dirt, moisture or oily fingerprints.
Additionally, a Zoom Lock switch prevents unwanted barrel extension during transportation.
Pricing and Availability
The new Tamron 28-200mm is available to pre-order for $729 from B&H, and is scheduled to ship on June 25th. However, as we’re all living in a COVID-19 world now, a delay is always a possibility.
Get full specifications and learn more at Tamron.eu.