Tamron 17-28mm f/2.8 Di III RXD Lens for fullframe Sony E mirrorless cameras has been officially announced. This is the second zoom lens that Tamron makes for the full-frame Sony E-mount mirrorless cameras. After launching 17-28mm f/2.8 Di III RXD lens called “best selling zoom lens” by Tamron.

Tamron 17-28mm f/2.8 Di III RXD lens has focal lengths from ultra-wide to wide for fullframe Sony E mirrorless cameras and is suitable for landscape, astronomical and architectural categories. The largest aperture is f/2.8 lit all over the focal length, allowing for a depth of field control and usability in low-light image conditions.

The lens is also equipped with RXD stepper motor (Rapid eXtra-silent stepping Drive) that allows fast autofocusing and almost no noise, suitable for shooting where high quietness is required and when shooting video. The minimum focusing distance of the lens is 19cm

The Tamron 17-28mm f/2.8 Di III RXD lens has an optical structure of 13 elements in 11 groups, including a low layer of LD (Low Dispersion) elements and a very low XLD dispersion elements (Extra Low Dispersion) limits chromatic aberration and purple fringing effectively, giving clear, true color images.

Tamron coated the BBAR (Broad-Band Anti-Reflection) coating on individual lenses in the optical structure to eliminate internal reflections, glare, and ghosting to achieve contrast and Higher color fidelity when used in strong light conditions.

Tamron 17-28mm f/2.8 Di III RXD Lens Specifications

Dimensions of 73 x 99 mm

Weight of 420g

Mount: Sony E (Full-Frame)

Maximum aperture: f/2.8

Minimum aperture: f/22

Focal Length: 17 to 28mm

13 Elements in 11 Groups

Rounded 9-Blade Diaphragm

XLD and LD Elements

Moisture-Resistant Construction

BBAR and Fluorine Coatings

Angle of View: 103° 41′ to 75° 23′

Maximum magnification: 0.1923 to 0.1666x

Focusing range: 19 cm

Front filter: 67 mm

Price and Availability

Tamron 17-28mm f/2.8 Di III RXD Lens has been priced $899, and already up for pre-orders via Bhphtovideo.com. The lens will ship on July 26, 2019, so what you think will the 17-28mm f/2.8 Di III RXD from Tamron can compete against other lenses with the same focal length for Sony’s full-frame mirrorless cameras?