The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 9mm F2.8 Z and the Samyang 21mm F1.4 ED AS UMC CS 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 21mm F1.4 ED AS UMC CS is the longer of the two lenses at 68mm. The Viltrox 9mm F2.8 Z with a length of 56mm, is 12mm shorter. On the other hand, the Viltrox 9mm F2.8 Z has a larger diameter of 65mm compared to the Samyang 21mm F1.4 ED AS UMC CS 's 64mm diameter.
Below you can find a scaled side-by-side image of Viltrox 9mm F2.8 Z and Samyang 21mm F1.4 ED AS UMC CS to get a better idea of how their sizes compare in real life.
Comparison image of the Viltrox 9mm F2.8 Z and the Samyang 21mm F1.4 ED AS UMC CS 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. Viltrox 9mm F2.8 Z weighs 175g, which means it is 100g (36%) lighter than the Samyang 21mm F1.4 ED AS UMC CS which has a weight of 275g.
Filter Threads
Both the Viltrox 9mm F2.8 Z and the Samyang 21mm F1.4 ED AS UMC CS have the same Filter thread size of 58mm .
Below are links to the 58mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Viltrox 9mm F2.8 Z has the Nikon Z lens mount whereas the Samyang 21mm F1.4 ED AS UMC CS has the Sony E lens mount . Some of the latest released cameras that are compatible with these mounts are RED Komodo-X 6K Z , Nikon Z50 II and Nikon Z30 for the Nikon Z Mount and Sony ZV-E10 II , Sony A6700 and Sony FX30 for the Sony E Mount.
Canon EF-M , Fujifilm X and Micro Four Thirds mounts.
Focal Range
Viltrox 9mm F2.8 Z is a prime lens with fixed focal lenght of 9mm which has an effective (full-frame 35mm equivalent) focal range of
13.5mm when used on a APS-C / DX format camera.
On the other hand, the Samyang 21mm F1.4 ED AS UMC CS is a prime lens with fixed focal lenght of 21mm which has an effective (full-frame 35mm equivalent) focal range of 31.5mm when used on a APS-C / DX format camera.
