The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 24mm F1.8 E and the Viltrox 25mm F1.7 X 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 AF 24mm F1.8 E is the longer of the two lenses at 85mm. The Viltrox 25mm F1.7 X with a length of 56mm, is 29mm shorter. Besides being longer, the Viltrox AF 24mm F1.8 E also has a larger diameter of 70mm compared to the Viltrox 25mm F1.7 X's 64mm 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 25mm F1.7 X weighs 180g, 47% (160g) lighter than the Viltrox AF 24mm F1.8 E's weight of 340g.
Filter Threads
The Viltrox AF 24mm F1.8 E has a filter size of 55mm whereas the Viltrox 25mm F1.7 X has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 55mm filters that we recommend you to consider for the Viltrox AF 24mm F1.8 E:
And these are the 52mm filters that we recommend for the Viltrox 25mm F1.7 X:
Lens Mounts
The Viltrox AF 24mm F1.8 E has the Sony E lens mount whereas the Viltrox 25mm F1.7 X has the Fujifilm X 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 Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount.
Focal Range
Viltrox AF 24mm F1.8 E is a prime lens with fixed focal lenght of 24mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36mm.
On the other hand, the Viltrox 25mm F1.7 X is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of 37.5mm when used on a APS-C / DX format camera.
