The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 16mm f2.0 and the Nikon PC 19mm F4E ED 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. Nikon PC 19mm F4E ED is the longer of the two lenses at 124mm. The Samyang 16mm f2.0 with a length of 89mm, is 35mm shorter. Besides being longer, the Nikon PC 19mm F4E ED also has a larger diameter of 89mm compared to the Samyang 16mm f2.0's 83mm 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. Samyang 16mm f2.0 weighs 583g, which means it is 302g (34%) lighter than the Nikon PC 19mm F4E ED which has a weight of 885g.
Lens Mounts
The Samyang 16mm f2.0 has the Nikon F (DX) lens mount whereas the Nikon PC 19mm F4E ED has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Samyang 16mm f2.0 is also available in Canon EF , Canon EF-M, Fujifilm X, Four Thirds, Micro Four Thirds, Pentax KAF, Sony Alpha, Sony E and Samsung NX mounts.
Focal Range
Samyang 16mm f2.0 is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of
24mm when used on a APS-C / DX format camera.
On the other hand, the Nikon PC 19mm F4E ED is a prime lens with fixed focal lenght of 19mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 28.5mm.