The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujifilm GF 55mm F1.7R WR and the Sigma 50mm F1.4 EX DG HSM 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 GF 55mm F1.7R WR is the longer of the two lenses at 99mm. The Sigma 50mm F1.4 EX DG HSM with a length of 68mm, is 31mm shorter. Besides being longer, the Fujifilm GF 55mm F1.7R WR also has a larger diameter of 95mm compared to the Sigma 50mm F1.4 EX DG HSM's 85mm 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. Sigma 50mm F1.4 EX DG HSM weighs 505g, 35% (275g) lighter than the Fujifilm GF 55mm F1.7R WR's weight of 780g.
Filter Threads
Both the Fujifilm GF 55mm F1.7R WR and the Sigma 50mm F1.4 EX DG HSM have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Fujifilm GF 55mm F1.7R WR has the Fujifilm G lens mount whereas the Sigma 50mm F1.4 EX DG HSM has the Sigma SA lens mount. Some of the latest released cameras that are compatible with these mounts are Fujifilm GFX Eterna 55, Fujifilm GFX 100S II and Fujifilm GFX 100 II for the Fujifilm G Mount and Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill for the Sigma SA Mount.
Sigma 50mm F1.4 EX DG HSM is also available in Canon EF , Pentax KAF3, Sony Alpha, Nikon F (FX) and Four Thirds mounts.
Focal Range
Fujifilm GF 55mm F1.7R WR is a prime lens with fixed focal lenght of 55mm.
On the other hand, the Sigma 50mm F1.4 EX DG HSM is a prime lens with fixed focal lenght of 50mm.
