The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 300mm f6.3 and the Sigma 30mm F1.4 DC 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. Samyang 300mm f6.3 is the longer of the two lenses at 74mm. The Sigma 30mm F1.4 DC HSM with a length of 63mm, is 11mm shorter. On the other hand, the Sigma 30mm F1.4 DC HSM has a larger diameter of 74mm compared to the Samyang 300mm f6.3's 65mm 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. Samyang 300mm f6.3 weighs 260g, which means it is 175g (40%) lighter than the Sigma 30mm F1.4 DC HSM which has a weight of 435g.
Filter Threads
The Samyang 300mm f6.3 has a filter size of 26mm whereas the Sigma 30mm F1.4 DC HSM has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 26mm filters that we recommend you to consider for the Samyang 300mm f6.3:
And these are the 62mm filters that we recommend for the Sigma 30mm F1.4 DC HSM:
Lens Mounts
The Samyang 300mm f6.3 has the Sony Alpha lens mount whereas the Sigma 30mm F1.4 DC HSM has the Nikon F (DX) lens mount. Some of the latest released cameras that are compatible with these mounts are Sony A68, Sony A77 II and Sony A58 for the Sony Alpha Mount and Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount.
Samyang 300mm f6.3 is also available in the Canon EF , Nikon F (DX) and Four Thirds mounts.
Sigma 30mm F1.4 DC HSM is also available in Canon EF and Sigma SA mounts.
Focal Range
Samyang 300mm f6.3 is a prime lens with fixed focal lenght of 300mm which has an effective (full-frame 35mm equivalent) focal range of
450mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 30mm F1.4 DC HSM is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 45mm when used on a APS-C / DX format camera.
