The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 28-200mm F2.8-5.6 Di III and the Sony FE 28-70mm F3.5-5.6 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 28-200mm F2.8-5.6 Di III is the longer of the two lenses at 117mm. The Sony FE 28-70mm F3.5-5.6 with a length of 83mm, is 34mm shorter. Besides being longer, the Tamron 28-200mm F2.8-5.6 Di III also has a larger diameter of 74mm compared to the Sony FE 28-70mm F3.5-5.6's 73mm diameter.
Below you can find a scaled side-by-side image of Tamron 28-200mm F2.8-5.6 Di III and Sony FE 28-70mm F3.5-5.6 to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 28-200mm F2.8-5.6 Di III and the Sony FE 28-70mm F3.5-5.6 Size and Weight 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 weighs 295g, 48% (281g) lighter than the Tamron 28-200mm F2.8-5.6 Di III's weight of 576g.
Filter Threads
The Tamron 28-200mm F2.8-5.6 Di III has a filter size of 67mm whereas the Sony FE 28-70mm F3.5-5.6 has a 55mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Tamron 28-200mm F2.8-5.6 Di III:
And these are the 55mm filters that we recommend for the Sony FE 28-70mm F3.5-5.6:
Lens Mounts
Both the Tamron 28-200mm F2.8-5.6 Di III and the Sony FE 28-70mm F3.5-5.6 has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Focal Range
Tamron 28-200mm F2.8-5.6 Di III has a focal range of 28-200mm and
7.1X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
42 - 300mm .
On the other hand, the Sony FE 28-70mm F3.5-5.6 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 .
