The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony E 35mm F1.8 OSS and the Rokinon 8mm f3.5 Fisheye 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 8mm f3.5 Fisheye is the longer of the two lenses at 77mm. The Sony E 35mm F1.8 OSS with a length of 45mm, is 32mm shorter. Besides being longer, the Rokinon 8mm f3.5 Fisheye also has a larger diameter of 75mm compared to the Sony E 35mm F1.8 OSS'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. Sony E 35mm F1.8 OSS weighs 155g, which means it is 288g (65%) lighter than the Rokinon 8mm f3.5 Fisheye which has a weight of 443g.
Lens Mounts
The Sony E 35mm F1.8 OSS has the Sony E lens mount whereas the Rokinon 8mm f3.5 Fisheye has the Nikon F (FX) 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 Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (FX) Mount.
Rokinon 8mm f3.5 Fisheye is also available in Canon EF , Four Thirds, Pentax KAF, Sony Alpha and Samsung NX mounts.
Focal Range
Sony E 35mm F1.8 OSS is a prime lens with fixed focal lenght of 35mm which has an effective (full-frame 35mm equivalent) focal range of
52.5mm when used on a APS-C / DX format camera.
On the other hand, the Rokinon 8mm f3.5 Fisheye is a prime lens with fixed focal lenght of 8mm which has an effective (full-frame 35mm equivalent) focal range of 12mm when used on a APS-C / DX format camera.
