The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 27mm F1.2 Pro XF and the Viltrox 75mm f1.2 AF 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 75mm f1.2 AF is the longer of the two lenses at 101mm. The Viltrox 27mm F1.2 Pro XF with a length of 92mm, is 9mm shorter. Besides being longer, the Viltrox 75mm f1.2 AF also has a larger diameter of 87mm compared to the Viltrox 27mm F1.2 Pro XF's 73mm 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 27mm F1.2 Pro XF weighs 560g, which means it is 110g (16%) lighter than the Viltrox 75mm f1.2 AF which has a weight of 670g.
Filter Threads
The Viltrox 27mm F1.2 Pro XF has a filter size of 67mm whereas the Viltrox 75mm f1.2 AF has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Viltrox 27mm F1.2 Pro XF:
And these are the 77mm filters that we recommend for the Viltrox 75mm f1.2 AF:
Lens Mounts
Both the Viltrox 27mm F1.2 Pro XF and the Viltrox 75mm f1.2 AF has the same Fujifilm X lens mount. Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5.
Viltrox 75mm f1.2 AF is also available in Sony E and Nikon Z mounts.
Focal Range
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.
On the other hand, the Viltrox 75mm f1.2 AF is a prime lens with fixed focal lenght of 75mm which has an effective (full-frame 35mm equivalent) focal range of 112.5mm when used on a APS-C / DX format camera.