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 Rokinon 35mm f1.4 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. Rokinon 35mm f1.4 is the longer of the two lenses at 112mm. The Samyang 300mm f6.3 with a length of 74mm, is 38mm shorter. On the other hand, the Samyang 300mm f6.3 has a larger diameter of 65mm compared to the Rokinon 35mm f1.4's 63mm 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 400g (60%) lighter than the Rokinon 35mm f1.4 which has a weight of 660g.
Filter Threads
The Samyang 300mm f6.3 has a filter size of 26mm whereas the Rokinon 35mm 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 26mm filters that we recommend you to consider for the Samyang 300mm f6.3:
And these are the 77mm filters that we recommend for the Rokinon 35mm f1.4:
Lens Mounts
The Samyang 300mm f6.3 has the Sony Alpha lens mount whereas the Rokinon 35mm f1.4 has the Canon EF 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 Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Samyang 300mm f6.3 is also available in the Canon EF , Nikon F (DX) and Four Thirds mounts.
Rokinon 35mm f1.4 is also available in Nikon F (FX) , Four Thirds, Pentax KAF, Sony Alpha and Samsung NX 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 Rokinon 35mm f1.4 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.
