The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 70-200mm F2.8 GM II and the Tamron 90mm F2.8 VC USD Macro 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 70-200mm F2.8 GM II is the longer of the two lenses at 200mm. The Tamron 90mm F2.8 VC USD Macro with a length of 115mm, is 85mm shorter. Besides being longer, the Sony FE 70-200mm F2.8 GM II also has a larger diameter of 88mm compared to the Tamron 90mm F2.8 VC USD Macro's 76mm 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 90mm F2.8 VC USD Macro weighs 550g, 47% (495g) lighter than the Sony FE 70-200mm F2.8 GM II's weight of 1045g.
Filter Threads
The Sony FE 70-200mm F2.8 GM II has a filter size of 77mm whereas the Tamron 90mm F2.8 VC USD Macro has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Sony FE 70-200mm F2.8 GM II:
And these are the 58mm filters that we recommend for the Tamron 90mm F2.8 VC USD Macro:
Lens Mounts
The Sony FE 70-200mm F2.8 GM II has the Sony E lens mount whereas the Tamron 90mm F2.8 VC USD Macro has the Sony Alpha 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 Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount.
Tamron 90mm F2.8 VC USD Macro is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Sony FE 70-200mm F2.8 GM II has a focal range of 70-200mm 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
105 - 300mm.
On the other hand, the Tamron 90mm F2.8 VC USD Macro is a prime lens with fixed focal lenght of 90mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 135mm.
