The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 60mm f2 II LD IF Macro and the Sigma 70mm 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. Sigma 70mm F2.8 EX DG Macro is the longer of the two lenses at 95mm. The Tamron 60mm f2 II LD IF Macro with a length of 80mm, is 15mm shorter. Besides being longer, the Sigma 70mm F2.8 EX DG Macro also has a larger diameter of 76mm compared to the Tamron 60mm f2 II LD IF Macro'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. Tamron 60mm f2 II LD IF Macro weighs 400g, which means it is 127g (24%) lighter than the Sigma 70mm F2.8 EX DG Macro which has a weight of 527g.
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
Lens Mounts
Both the Tamron 60mm f2 II LD IF Macro and the Sigma 70mm F2.8 EX DG Macro has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A68, Sony A77 II and Sony A58.
Tamron 60mm f2 II LD IF Macro is also available in the Canon EF and Nikon F (DX) mounts.
Sigma 70mm F2.8 EX DG Macro is also available in Canon EF , Nikon F (FX), Pentax KAF and Sigma SA mounts.
Focal Range
Tamron 60mm f2 II LD IF Macro is a prime lens with fixed focal lenght of 60mm which has an effective (full-frame 35mm equivalent) focal range of
90mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 70mm F2.8 EX DG Macro is a prime lens with fixed focal lenght of 70mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105mm.
