Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Sigma 24-70 F2.8 DG DN Art is the longer of the two lenses at 123mm. The Tamron 28-75mm F2.8 Di III VXD G2 with a length of 118mm is 5mm shorter. Besides being longer, the Sigma 24-70 F2.8 DG DN Art also has a larger diameter of 88mm compared to Tamron 28-75mm F2.8 Di III VXD G2's 76mm diameter.
Below you can find the scaled side by side image of Sigma 24-70 F2.8 DG DN Art and Tamron 28-75mm F2.8 Di III VXD G2 to get a better idea of how their size compare in real life.
Comparison image of Sigma 24-70 F2.8 DG DN Art and Tamron 28-75mm F2.8 Di III VXD G2 Size and Weight Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Tamron 28-75mm F2.8 Di III VXD G2 weighs 540g, 54% (295g) lighter than the Sigma 24-70 F2.8 DG DN Art's weight of 835g.
Below you can find the dimension and weight table of the 'Standard Zoom Lenses in Sony E Mount for size comparison purposes.
Standard Zoom Lenses in Sony E Mount for Size Comparison
Lens Mounts
Both Sigma 24-70 F2.8 DG DN Art and Tamron 28-75mm F2.8 Di III VXD G2 has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A7 IV, Sony ZV-E10 and Sony A1.
Sigma 24-70 F2.8 DG DN Art is also available in Leica SL mount.
Focal Range
Sigma 24-70 F2.8 DG DN Art has a focal range of 24-70mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 36 - 105mm.
Tamron 28-75mm F2.8 Di III VXD G2 has a focal range of 28-75mm and 2.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 42 - 112.5mm.