The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujifilm XF 18mm F1.4 R LM WR and the Voigtlander 40mm F2 SL II 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. Fujifilm XF 18mm F1.4 R LM WR is the longer of the two lenses at 76mm. The Voigtlander 40mm F2 SL II with a length of 25mm, is 51mm shorter. Besides being longer, the Fujifilm XF 18mm F1.4 R LM WR also has a larger diameter of 69mm compared to the Voigtlander 40mm F2 SL II's 63mm 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 40mm F2 SL II weighs 200g, 45% (170g) lighter than the Fujifilm XF 18mm F1.4 R LM WR's weight of 370g.
Filter Threads
The Fujifilm XF 18mm F1.4 R LM WR has a filter size of 62mm whereas the Voigtlander 40mm F2 SL II 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 62mm filters that we recommend you to consider for the Fujifilm XF 18mm F1.4 R LM WR:
And these are the 52mm filters that we recommend for the Voigtlander 40mm F2 SL II:
Lens Mounts
The Fujifilm XF 18mm F1.4 R LM WR has the Fujifilm X lens mount whereas the Voigtlander 40mm F2 SL II has the Nikon F (FX) 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 Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Voigtlander 40mm F2 SL II is also available in Canon EF and Pentax KAF mounts.
Focal Range
Fujifilm XF 18mm F1.4 R LM WR is a prime lens with fixed focal lenght of 18mm which has an effective (full-frame 35mm equivalent) focal range of
27mm when used on a APS-C / DX format camera.
On the other hand, the Voigtlander 40mm F2 SL II is a prime lens with fixed focal lenght of 40mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 60mm.
