The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 50mm F1.4 AS UMC and the Nikon 50mm f1.8G 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 50mm F1.4 AS UMC is the longer of the two lenses at 75mm. The Nikon 50mm f1.8G with a length of 53mm, is 22mm shorter. Besides being longer, the Samyang 50mm F1.4 AS UMC also has a larger diameter of 82mm compared to the Nikon 50mm f1.8G's 72mm 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. Nikon 50mm f1.8G weighs 185g, 65% (350g) lighter than the Samyang 50mm F1.4 AS UMC's weight of 535g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Nikon F (FX) Mount for size comparison purposes.
Standard Lenses in Nikon F (FX) Mount for Size Comparison
Filter Threads
The Samyang 50mm F1.4 AS UMC has a filter size of 77mm whereas the Nikon 50mm f1.8G has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Samyang 50mm F1.4 AS UMC:
And these are the 58mm filters that we recommend for the Nikon 50mm f1.8G:
Lens Mounts
Both the Samyang 50mm F1.4 AS UMC and the Nikon 50mm f1.8G has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Samyang 50mm F1.4 AS UMC is also available in Canon EF , Pentax KAF, Sony Alpha and Sony E mounts.
Focal Range
Both lenses have the same focal range of
50mm but while Samyang 50mm F1.4 AS UMC has the fastest aperture of
F1.4, the Nikon 50mm f1.8G's widest aperture value is
F1.8.