The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 28-70mm F3.5-5.6 II and the Tamron 70-210mm F4 Di VC USD 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. Tamron 70-210mm F4 Di VC USD is the longer of the two lenses at 175mm. The Sony FE 28-70mm F3.5-5.6 II with a length of 83mm, is 92mm shorter. Besides being longer, the Tamron 70-210mm F4 Di VC USD also has a larger diameter of 76mm compared to the Sony FE 28-70mm F3.5-5.6 II's 73mm 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. Sony FE 28-70mm F3.5-5.6 II weighs 295g, which means it is 564g (65%) lighter than the Tamron 70-210mm F4 Di VC USD which has a weight of 859g.
Filter Threads
The Sony FE 28-70mm F3.5-5.6 II has a filter size of 55mm whereas the Tamron 70-210mm F4 Di VC USD 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 55mm filters that we recommend you to consider for the Sony FE 28-70mm F3.5-5.6 II:
And these are the 67mm filters that we recommend for the Tamron 70-210mm F4 Di VC USD:
Lens Mounts
The Sony FE 28-70mm F3.5-5.6 II has the Sony E lens mount whereas the Tamron 70-210mm F4 Di VC USD has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Tamron 70-210mm F4 Di VC USD is also available in Canon EF mount.
Focal Range
Sony FE 28-70mm F3.5-5.6 II has a focal range of 28-70mm and
2.5X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 105mm.
On the other hand, the Tamron 70-210mm F4 Di VC USD has a focal range of 70-210mm and 3.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105 - 315mm.
