The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander Ultron 27mm F2 and the 7artisans 25mm F1.8 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. 7artisans 25mm F1.8 is the longer of the two lenses at 32mm. The Voigtlander Ultron 27mm F2 with a length of 23mm, is 9mm shorter. On the other hand, the Voigtlander Ultron 27mm F2 has a larger diameter of 59mm compared to the 7artisans 25mm F1.8's 51mm 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. Voigtlander Ultron 27mm F2 weighs 120g, which means it is 23g (16%) lighter than the 7artisans 25mm F1.8 which has a weight of 143g.
Filter Threads
The Voigtlander Ultron 27mm F2 has a filter size of 43mm whereas the 7artisans 25mm F1.8 has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 43mm filters that we recommend you to consider for the Voigtlander Ultron 27mm F2:
And these are the 46mm filters that we recommend for the 7artisans 25mm F1.8:
Lens Mounts
The Voigtlander Ultron 27mm F2 has the Fujifilm X lens mount whereas the 7artisans 25mm F1.8 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.
7artisans 25mm F1.8 is also available in Canon EF-M , Fujifilm X and Sony E mounts.
Focal Range
Voigtlander Ultron 27mm F2 is a prime lens with fixed focal lenght of 28mm 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 7artisans 25mm F1.8 is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of 50mm when used on a APS-C / DX format camera.
