Tamron 17-28mm 2.8 Di III RXD für Sony E (A046S)

The 17-28mm f2.8 Di III RXD is Tamron's second native lens designed specifically for Sony's full-frame mirrorless E-mount bodies. From my tests Tamron's 17-28mm seems to follow in the footsteps of their 28-75mm f2.8 Di III RXD standard zoom: it offers a constant f2.8 focal ratio, is sharp to very sharp, shows very good resistance against flare and glare in challenging contra-light situations, and offers useful performance in close-up shooting. The lens is also pretty small and light. So light in fact that both the 17-28mm plus the 28-75mm f2.8 Tamron zooms together weigh only 1kg although they offer a constant f2.8 aperture throughout the zoom-range. And crucially you can get both at a price below that of Sony's FE 16-35mm f2.8 GM. What's not to like? Well, the 1.6x zoom range can feel pretty limited at times, the working distance at close-up shooting is a very short 6cm making it pretty hard not to throw a shadow on your subject and scare little critters away, and the full-frame corners are a bit soft when shooting at around 1-2m distance. But most of us want an ultra-wide zoom for more distant subjects where the Tamron excels, indeed equalling or even surpassing the sharpness of the Sony GM at times. So if you can live with the somewhat limited 1.6x zoom range, Tamron's second native E-mount lens earns a clear recommendation and becomes even more compelling when paired with the 28-75mm.