The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 90mm F2.8 VC Macro and the Sigma 105mm F2.8 EX DG 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 VC Macro is the longer of the two lenses at 117mm. The Sigma 105mm F2.8 EX DG Macro with a length of 98mm, is 19mm shorter. Besides being longer, the Tamron 90mm F2.8 VC Macro also has a larger diameter of 79mm compared to the Sigma 105mm F2.8 EX DG Macro's 74mm 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. Sigma 105mm F2.8 EX DG Macro weighs 460g, 24% (149g) lighter than the Tamron 90mm F2.8 VC Macro's weight of 609g.
Below you can find the dimension and weight table of the Macro Prime Lenses in Nikon F (FX) Mount for size comparison purposes.
Macro Lenses in Nikon F (FX) Mount for Size Comparison
Filter Threads
Both the Tamron 90mm F2.8 VC Macro and the Sigma 105mm F2.8 EX DG Macro have the same Filter thread size of 62mm.
Below are links to the 62mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Tamron 90mm F2.8 VC Macro and the Sigma 105mm F2.8 EX DG Macro has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Tamron 90mm F2.8 VC Macro is also available in Sony Alpha and Canon EF mounts.
Sigma 105mm F2.8 EX DG Macro is also available in Canon EF , Pentax KAF, Sony Alpha, Sigma SA and Four Thirds mounts.
Focal Range
Tamron 90mm F2.8 VC 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 Sigma 105mm F2.8 EX DG Macro is a prime lens with fixed focal lenght of 105mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 157.5mm.