LAOWA 17mm f/4 Zero-D for Fuji GFX World’s First and Widest native lens for the Fujifilm G-mount Mirrorless Medium Format. GFX cameras Field of view equivalent to 13.5mm (113°) in 35mm format Zero-D (Close-to-zero Distortion) 86mm filter thread allows a quick installation of filter 5 aperture blades to create a 10-point sunstars rendering. Wide and bright, best GFX lens for nightscape photography. Ultra close focus – 20mm from sensor.