The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 56mm F1.4 C and the Sony E 50mm F1.8 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 E 50mm F1.8 OSS is the longer of the two lenses at 62mm. The Sigma 56mm F1.4 C with a length of 60mm, is 2mm shorter. On the other hand, the Sigma 56mm F1.4 C has a larger diameter of 67mm compared to the Sony E 50mm F1.8 OSS's 62mm 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 E 50mm F1.8 OSS weighs 202g, 27% (78g) lighter than the Sigma 56mm F1.4 C's weight of 280g.
Filter Threads
The Sigma 56mm F1.4 C has a filter size of 55mm whereas the Sony E 50mm F1.8 OSS has a 49mm 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 56mm F1.4 C:
And these are the 49mm filters that we recommend for the Sony E 50mm F1.8 OSS:
Lens Mounts
The Sigma 56mm F1.4 C has the Nikon Z lens mount whereas the Sony E 50mm F1.8 OSS has the Sony E lens mount. Some of the latest released cameras that are compatible with these mounts are RED Komodo-X 6K Z, Nikon Z50 II and Nikon Z30 for the Nikon Z Mount and Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount.
Sigma 56mm F1.4 C is also available in the Fujifilm X and Canon RF mounts.
Focal Range
Sigma 56mm F1.4 C is a prime lens with fixed focal lenght of 56mm which has an effective (full-frame 35mm equivalent) focal range of
84mm when used on a APS-C / DX format camera.
On the other hand, the Sony E 50mm F1.8 OSS is a prime lens with fixed focal lenght of 50mm which has an effective (full-frame 35mm equivalent) focal range of 75mm when used on a APS-C / DX format camera.
