The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 33mm F1.4 X 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. Viltrox 33mm F1.4 X is the longer of the two lenses at 72mm. The Samyang 21mm F1.4 ED AS UMC CS with a length of 68mm, is 4mm shorter. Besides being longer, the Viltrox 33mm F1.4 X also 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 33mm F1.4 X 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 33mm F1.4 X 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 33mm F1.4 X weighs 270g, which means it is 5g (1%) lighter than the Samyang 21mm F1.4 ED AS UMC CS which has a weight of 275g.
Filter Threads
The Viltrox 33mm F1.4 X has a filter size of 52mm whereas the Samyang 21mm F1.4 ED AS UMC CS 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 52mm filters that we recommend you to consider for the Viltrox 33mm F1.4 X:
And these are the 58mm filters that we recommend for the Samyang 21mm F1.4 ED AS UMC CS:
Lens Mounts
The Viltrox 33mm F1.4 X has the Fujifilm X lens mount whereas the Samyang 21mm F1.4 ED AS UMC CS has the Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with these mounts are Fujifilm X-T30 III , Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount and OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Canon EF-M , Fujifilm X and Sony E mounts.
Focal Range
Viltrox 33mm F1.4 X is a prime lens with fixed focal lenght of 33mm which has an effective (full-frame 35mm equivalent) focal range of
49.5mm 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 42mm when used on a APS-C / DX format camera.
