The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70mm F2.8 DG Macro and the Tamron 60mm f2 II LD IF 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 DG Macro is the longer of the two lenses at 106mm. The Tamron 60mm f2 II LD IF Macro with a length of 80mm, is 26mm shorter. On the other hand, the Tamron 60mm f2 II LD IF Macro has a larger diameter of 73mm compared to the Sigma 70mm F2.8 DG Macro's 71mm 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, 22% (115g) lighter than the Sigma 70mm F2.8 DG Macro's weight of 515g.
Filter Threads
The Sigma 70mm F2.8 DG Macro has a filter size of 49mm whereas the Tamron 60mm f2 II LD IF Macro 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 49mm filters that we recommend you to consider for the Sigma 70mm F2.8 DG Macro:
And these are the 55mm filters that we recommend for the Tamron 60mm f2 II LD IF Macro:
Lens Mounts
The Sigma 70mm F2.8 DG Macro has the Nikon F (FX) lens mount whereas the Tamron 60mm f2 II LD IF Macro has the Nikon F (DX) lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount.
Sigma 70mm F2.8 DG Macro is also available in Canon EF , Sigma SA and Sony E mounts.
Tamron 60mm f2 II LD IF Macro is also available in Canon EF and Sony Alpha mounts.
Focal Range
Sigma 70mm F2.8 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.
On the other hand, the 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.