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 AF 45mm F1.8 FE 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. Viltrox AF 50mm F2.0 Air is the longer of the two lenses at 57mm. The Samyang AF 45mm F1.8 FE with a length of 56mm, is 1mm shorter. Besides being longer, the Viltrox AF 50mm F2.0 Air also has a larger diameter of 65mm compared to the Samyang AF 45mm F1.8 FE's 62mm diameter.
Below you can find a scaled side-by-side image of Viltrox AF 50mm F2.0 Air and Samyang AF 45mm F1.8 FE to get a better idea of how their sizes compare in real life.
Comparison image of the Viltrox AF 50mm F2.0 Air and the Samyang AF 45mm F1.8 FE Size and Weight 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 AF 45mm F1.8 FE weighs 162g, 24% (53g) lighter than the Viltrox AF 50mm F2.0 Air's weight of 215g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Sony E Mount for size comparison purposes.
Standard Sony E Mount
Filter Threads
The Viltrox AF 50mm F2.0 Air has a filter size of 58mm whereas the Samyang AF 45mm F1.8 FE has a 49mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Viltrox AF 50mm F2.0 Air:
And these are the 49mm filters that we recommend for the Samyang AF 45mm F1.8 FE:
Lens Mounts
Both the Viltrox AF 50mm F2.0 Air and the Samyang AF 45mm F1.8 FE has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
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 AF 45mm F1.8 FE is a prime lens with fixed focal lenght of 45mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 67.5mm .
