Tamron 11-20mm F/2.8 Di III-A RXD widens the choice for Sony APS-C owners

Tamron 11-20mm F2.8 Di III-A RXD
(Image credit: Tamron)

A recent leak shows that Tamron is expected to announce a new fast ultra-wide lens later this month. Rumored to be called the Tamron 11-20mm F/2.8 Di III-A RXD, it would mark a first for the Sony E-mount APS-C system: a constant aperture f/2.8 ultra-wide zoom lens. Currently Sony's only own-brand offering that comes close is the E 10-18mm F4 OSS, which though 1mm wider, is a whole f/stop slower throughout its aperture range.

Not only would the 11-20mm F/2.8 Di III-A RXD offer a large constant aperture, it looks set to do so while also being very compact and lightweight. Early details suggest the lens would be just 86.2mm long with a 73mm maximum diameter, resulting in a 67mm front filter thread.

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Ben Andrews

Ben is the Imaging Labs manager, responsible for all the testing on Digital Camera World and across the entire photography portfolio at Future. Whether he's in the lab testing the sharpness of new lenses, the resolution of the latest image sensors, the zoom range of monster bridge cameras or even the latest camera phones, Ben is our go-to guy for technical insight. He's also the team's man-at-arms when it comes to camera bags, filters, memory cards, and all manner of camera accessories – his lab is a bit like the Batcave of photography! With years of experience trialling and testing kit, he's a human encyclopedia of benchmarks when it comes to recommending the best buys.