The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 90mm f2.8 Macro and the Sony 50mm F2.8 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. Tamron 90mm f2.8 Macro is the longer of the two lenses at 97mm. The Sony 50mm F2.8 Macro with a length of 60mm, is 37mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 72mm.
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 50mm F2.8 Macro weighs 295g, 27% (110g) lighter than the Tamron 90mm f2.8 Macro's weight of 405g.
Below you can find the dimension and weight table of the Macro Prime Lenses in Sony Alpha Mount for size comparison purposes.
Macro Lenses in Sony Alpha Mount for Size Comparison
Filter Threads
Both the Tamron 90mm f2.8 Macro and the Sony 50mm F2.8 Macro have the same Filter thread size of 55mm.
Below are links to the 55mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron 90mm f2.8 Macro and the Sony 50mm F2.8 Macro has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A99 II, Sony A68 and Sony A77 II.
Tamron 90mm f2.8 Macro is also available in the Canon EF , Nikon F (FX) and Pentax KAF mounts.
Focal Range
Tamron 90mm f2.8 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.
On the other hand, the Sony 50mm F2.8 Macro is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 75mm.
