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 Sony FE 50mm F1.8 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 Sony FE 50mm F1.8 with a length of 60mm, is 46mm shorter. Besides being longer, the Sigma 70mm F2.8 DG Macro also has a larger diameter of 71mm compared to the Sony FE 50mm F1.8's 69mm diameter.
Below you can find a scaled side-by-side image of Sigma 70mm F2.8 DG Macro and Sony FE 50mm F1.8 to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 70mm F2.8 DG Macro and the Sony FE 50mm F1.8 Size and Weight 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 FE 50mm F1.8 weighs 186g, 63% (329g) lighter than the Sigma 70mm F2.8 DG Macro's weight of 515g.
Filter Threads
Both the Sigma 70mm F2.8 DG Macro and the Sony FE 50mm F1.8 have the same Filter thread size of 49mm .
Below are links to the 49mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sigma 70mm F2.8 DG Macro and the Sony FE 50mm F1.8 has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Sigma 70mm F2.8 DG Macro is also available in the Canon EF , Nikon F (FX) and Sigma SA 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 Sony FE 50mm F1.8 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 .