The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 24-70mm F4 OSS and the Sigma 50mm F1.4 EX DG HSM 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. Sony FE 24-70mm F4 OSS is the longer of the two lenses at 95mm. The Sigma 50mm F1.4 EX DG HSM with a length of 68mm, is 27mm shorter. On the other hand, the Sigma 50mm F1.4 EX DG HSM has a larger diameter of 85mm compared to the Sony FE 24-70mm F4 OSS'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. Sony FE 24-70mm F4 OSS weighs 426g, which means it is 79g (15%) lighter than the Sigma 50mm F1.4 EX DG HSM which has a weight of 505g.
Filter Threads
The Sony FE 24-70mm F4 OSS has a filter size of 67mm whereas the Sigma 50mm F1.4 EX DG HSM has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Sony FE 24-70mm F4 OSS:
And these are the 77mm filters that we recommend for the Sigma 50mm F1.4 EX DG HSM:
Lens Mounts
The Sony FE 24-70mm F4 OSS has the Sony E lens mount whereas the Sigma 50mm F1.4 EX DG HSM has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Sigma 50mm F1.4 EX DG HSM is also available in Canon EF , Pentax KAF3, Sony Alpha, Sigma SA and Four Thirds mounts.
Focal Range
Sony FE 24-70mm F4 OSS has a focal range of 24-70mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36 - 105mm.
On the other hand, the Sigma 50mm F1.4 EX DG HSM 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.
