The Tamron 20mm f2.8 Di III OSD is an ultra-wide prime lens designed for Sony E-mount full-frame mirrorless cameras. Its compact and lightweight construction makes it ideal for walkaround and travel photography, whilst the fast f2.8 aperture and extremely short 0.11m minimum focusing distance deliver creative versatility. With a 1:2 macro magnification ratio, you can capture dynamic close-up perspectives alongside sweeping landscapes. Built with Low Dispersion and Glass Molded Aspherical elements, BBAR anti-reflection coating, moisture-resistant construction and fluorine coating, this lens delivers sharp, high-contrast images with excellent optical performance across the entire frame.