The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 20mm f2.8 E and the Samyang 20mm F1.8 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 20mm F1.8 is the longer of the two lenses at 88mm. The Viltrox AF 20mm f2.8 E with a length of 60mm, is 28mm shorter. Besides being longer, the Samyang 20mm F1.8 also has a larger diameter of 83mm compared to the Viltrox AF 20mm f2.8 E'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. Viltrox AF 20mm f2.8 E weighs 157g, which means it is 340g (68%) lighter than the Samyang 20mm F1.8 which has a weight of 497g.
Filter Threads
The Viltrox AF 20mm f2.8 E has a filter size of 52mm whereas the Samyang 20mm F1.8 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 52mm filters that we recommend you to consider for the Viltrox AF 20mm f2.8 E:
And these are the 77mm filters that we recommend for the Samyang 20mm F1.8:
Lens Mounts
The Viltrox AF 20mm f2.8 E has the Sony E lens mount whereas the Samyang 20mm F1.8 has the Pentax KAF 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 Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF Mount.
Samyang 20mm F1.8 is also available in Canon EF , Canon EF-M, Fujifilm X, Micro Four Thirds, Nikon F (FX), Samsung NX, Sony Alpha and Sony E mounts.
Focal Range
Both lenses have the same focal range of
20mm but while Viltrox AF 20mm f2.8 E has the fastest aperture of
F2.8, the Samyang 20mm F1.8's widest aperture value is
F1.8.
