The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 45mm F2.8 DG DN C and the Sony FE 24-70mm F4 OSS 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 45mm F2.8 DG DN C with a length of 46mm, is 49mm shorter. Besides being longer, the Sony FE 24-70mm F4 OSS also has a larger diameter of 73mm compared to the Sigma 45mm F2.8 DG DN C's 64mm 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 45mm F2.8 DG DN C weighs 215g, which means it is 211g (49%) lighter than the Sony FE 24-70mm F4 OSS which has a weight of 426g.
Filter Threads
The Sigma 45mm F2.8 DG DN C has a filter size of 55mm whereas the Sony FE 24-70mm F4 OSS has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 55mm filters that we recommend you to consider for the Sigma 45mm F2.8 DG DN C:
And these are the 67mm filters that we recommend for the Sony FE 24-70mm F4 OSS:
Lens Mounts
Both the Sigma 45mm F2.8 DG DN C and the Sony FE 24-70mm F4 OSS 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 45mm F2.8 DG DN C is also available in the Leica L mount.
Focal Range
Sigma 45mm F2.8 DG DN C is a prime lens with fixed focal lenght of 45mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
67.5mm.
On the other hand, the 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.
