Tamron 20-40mm f/2.8 DI III Overview
- Versatile wide-angle to standard-length zoom designed for full-frame Sony E-mount cameras that can also be used with APS-C models where it produces a 30-60mm equivalent focal length range.
 - Constant f/2.8 maximum aperture provides bright illumination throughout the zoom range and also enables precise control over depth of field for working with selective focus techniques.
 - VXD (Voice-coil eXtreme-torque Drive) linear motor focus mechanism for fast, quiet, and precise autofocus performance throughout the zoom range.
 - Compatible with many camera-specific features and functions including Fast Hybrid AF and Eye AF.
 - Minimum focusing distance of just 6.7″ and a 1:3.8 maximum magnification for working with close-up subjects.
 - Rapid zoom ring arc of 65° enables swift adjustment to the desired focal length with minimal movement.
 - Moisture-resistant construction for use in inclement conditions, plus a fluorine coating on the front lens element to protect against dust, dirt, and smearing.
 - Compatible with Tamron Lens Utility software for customizing lens functions and updating firmware.
 




















				
				
				
				
				
				
				
				
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