We’re testing for central sharpness, with both lenses at f/2.8, on a Fujifilm GFX100SII.

For the GF 45mm, this represents wide open performance.  The Thypoch 50mm is slightly stopped down, which gives it an advantage.

Looking at the images, the GF 45mm wins.  However, the result is much closer than I expected, even though I already knew the Thypoch performance is impressive.

With the Fuji lens, you also get autofocus, weather sealing, and less vignetting.  With the Thypoch, you get a maximum f/2 aperture (not shown here), and a much, much smaller and lighter lens.

For me, both lenses are keepers.

—Peter.