The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron AF 28-80mm f3.5-5.6 and the Sony FE 24-70mm F4 OSS for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Sony FE 24-70mm F4 OSS is the longer of the two lenses at 95mm. The Tamron AF 28-80mm f3.5-5.6 with a length of 70mm, is 25mm shorter. Besides being longer, the Sony FE 24-70mm F4 OSS also has a larger diameter of 73mm compared to the Tamron AF 28-80mm f3.5-5.6's 72mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Tamron AF 28-80mm f3.5-5.6 weighs 237g, which means it is 189g (44%) lighter than the Sony FE 24-70mm F4 OSS which has a weight of 426g.
Filter Threads
The Tamron AF 28-80mm f3.5-5.6 has a filter size of 58mm whereas the Sony FE 24-70mm F4 OSS has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Tamron AF 28-80mm f3.5-5.6:
And these are the 67mm filters that we recommend for the Sony FE 24-70mm F4 OSS:
Lens Mounts
The Tamron AF 28-80mm f3.5-5.6 has the Sony Alpha lens mount whereas the Sony FE 24-70mm F4 OSS has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount and Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount.
Tamron AF 28-80mm f3.5-5.6 is also available in the Canon EF , Nikon F (FX) and Pentax KAF mounts.
Focal Range
Tamron AF 28-80mm f3.5-5.6 has a focal range of 28-80mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 120mm.
On the other hand, the Sony FE 24-70mm F4 OSS 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 a 35mm (FF) equivalent of 36 - 105mm.