35mm focal length 135 equivalent 53mm f14 f16 aperture with a fast f14 aperture the 35mm xf lens 135 equivalent 53mm is perfect for low light shots featuring an all glass aspherical lens and other elements the lens is polished to perfection and treated with super ebc coating while the high quality metal barrel and precision machined 13 step aperture ring gives versatile control excellent out of focus bokeh are achieved thanks to the design of the moulded aperture diaphragm bl