Sharpness at 30mm

For this test, the Fujifilm GF 30mm f/3.5 R WR lens was attached to a Fujifilm GFX 50R camera, which was in turn mounted to a sturdy tripod. Exposure delay mode was activated. Tonal and colour variance across the crops are due to changes in natural light during the session.

The full frame at 30mm

What we typically appreciate from a physically larger sensor and lens mount such as the Fujfilm GFX system, is the greater ability for lenses to retain sharp detail from center to edges. Here, we have a lens that is tack sharp from center to edges at f/4 through to f/11.

Detail is ever-so-softer at f/3.5, but only from a lengthy scrutiny viewing images at the enormous 100% size. We would not hesitate whatsoever to use this lens at its maximum aperture. At f/16, overall detail is a twinge softer, but again, we'd use that setting happily.

The negative impact of diffraction (soft detail) is evident at f/22 and can be seen more clearly when using the f/32 aperture setting. To gain a reasonable depth of field while enjoying the full potential of this lens - for example for landscape images - we would avoid closing the aperture beyond f/20.

Overall, the Fujifilm GF 30mm f/3.5 R WR is an exceptionally sharp lens across the entire image area.

Aperture	Center Crop	Edge Crop
f/3.5
f/4
f/5.6
f/8
f/11
f/16
f/22
f/32