3The GF 55mm f/1.7 Lens from FUJIFILM is a lightweight cine-style portrait prime lens designed for GFX-system cameras. This extremely fast prime features a wide f/1.7 aperture to allow for optimum low-light performance and excellent control of your depth of field. 11 aperture blades render the out-of-focus areas of your frame into a smooth, rounded bokeh. With a 44mm full-frame equivalency, this lens functions well for various subjects ranging from street photography to portraiture.