The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 25mm F1.7 E and the Viltrox 27mm F1.2 Pro XF 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 27mm F1.2 Pro XF is the longer of the two lenses at 92mm. The Viltrox 25mm F1.7 E with a length of 56mm, is 36mm shorter. Besides being longer, the Viltrox 27mm F1.2 Pro XF also has a larger diameter of 73mm compared to the Viltrox 25mm F1.7 E'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 E weighs 170g, which means it is 390g (69%) lighter than the Viltrox 27mm F1.2 Pro XF which has a weight of 560g.
Filter Threads
The Viltrox 25mm F1.7 E has a filter size of 52mm whereas the Viltrox 27mm F1.2 Pro XF has a 67mm 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 25mm F1.7 E:
And these are the 67mm filters that we recommend for the Viltrox 27mm F1.2 Pro XF:
Lens Mounts
The Viltrox 25mm F1.7 E has the Sony E lens mount whereas the Viltrox 27mm F1.2 Pro XF has the Fujifilm X lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 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 25mm F1.7 E 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.
On the other hand, the Viltrox 27mm F1.2 Pro XF is a prime lens with fixed focal lenght of 27mm which has an effective (full-frame 35mm equivalent) focal range of 40.5mm when used on a APS-C / DX format camera.
