The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 18-50mm F2.8 DC DN C and the Samyang 24mm f1.4 for their suitability to various photography scenarios:
Size and Weight Comparison
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 18-50mm F2.8 DC DN C weighs 290g, which means it is 290g (50%) lighter than the Samyang 24mm f1.4 which has a weight of 580g.
Filter Threads
The Sigma 18-50mm F2.8 DC DN C has a filter size of 55mm whereas the Samyang 24mm f1.4 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 55mm filters that we recommend you to consider for the Sigma 18-50mm F2.8 DC DN C:
And these are the 77mm filters that we recommend for the Samyang 24mm f1.4:
Lens Mounts
The Sigma 18-50mm F2.8 DC DN C has the Sony E lens mount whereas the Samyang 24mm f1.4 has the Samsung NX lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and Samsung NX500, Samsung NX1 and Samsung NX3000 for the Samsung NX Mount.
Sigma 18-50mm F2.8 DC DN C is also available in the Leica L and Fujifilm X mounts.
Samyang 24mm f1.4 is also available in Canon EF , Nikon F (FX), Four Thirds, Pentax KAF, Sony Alpha and Sony E mounts.
Focal Range
Sigma 18-50mm F2.8 DC DN C has a focal range of 18-50mm and
2.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
27-75mm when used on a APS-C / DX format camera.
On the other hand, the Samyang 24mm f1.4 is a prime lens with fixed focal lenght of 24mm.
