The type of photography that you are planning to use is an important decision factor. Here we have evaluated the SongRaw 50mm f1.2 and the Sigma 35mm F1.4 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. SongRaw 50mm f1.2 is the longer of the two lenses at 111mm. The Sigma 35mm F1.4 DG HSM with a length of 94mm, is 17mm shorter. Besides being longer, the SongRaw 50mm f1.2 also has a larger diameter of 81mm compared to the Sigma 35mm F1.4 DG HSM's 77mm diameter.
Below you can find a scaled side-by-side image of SongRaw 50mm f1.2 and Sigma 35mm F1.4 DG HSM to get a better idea of how their sizes compare in real life.
Comparison image of the SongRaw 50mm f1.2 and the Sigma 35mm F1.4 DG HSM 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. Sigma 35mm F1.4 DG HSM weighs 665g, 26% (235g) lighter than the SongRaw 50mm f1.2's weight of 900g.
Filter Threads
The SongRaw 50mm f1.2 has a filter size of 72mm whereas the Sigma 35mm F1.4 DG HSM 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 72mm filters that we recommend you to consider for the SongRaw 50mm f1.2:
And these are the 67mm filters that we recommend for the Sigma 35mm F1.4 DG HSM:
Lens Mounts
The SongRaw 50mm f1.2 has the Sony E lens mount whereas the Sigma 35mm F1.4 DG HSM has the Canon EF 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 Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Sigma 35mm F1.4 DG HSM is also available in Pentax KAF3 , Sony Alpha , Sigma SA , Nikon F (FX) and Leica L mounts.
Focal Range
SongRaw 50mm f1.2 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 .
On the other hand, the Sigma 35mm F1.4 DG HSM is a prime lens with fixed focal lenght of 35mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 56mm .