The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 50mm F2.0 Air and the Samyang 300mm f6.3 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 Viltrox AF 50mm F2.0 Air with a length of 57mm, is 17mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 65mm.
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. Viltrox AF 50mm F2.0 Air weighs 215g, which means it is 103g (32%) lighter than the Samyang 300mm f6.3 which has a weight of 318g.
Lens Mounts
The Viltrox AF 50mm F2.0 Air has the Sony E lens mount whereas the Samyang 300mm f6.3 has the Micro Four Thirds 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 OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Viltrox AF 50mm F2.0 Air is also available in the Nikon Z mount.
Samyang 300mm f6.3 is also available in Canon EF-M , Fujifilm X and Sony E mounts.
Focal Range
Viltrox AF 50mm F2.0 Air 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 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 600mm when used on a FourThirds format camera.
