The Fujifilm Xf 35mm (53mm) F/1.4 Lens is specifically designed for the Fujifilm X-Pro1 camera with an Aps-c sensor, this Fujifilm 35mm f/1.4 Xf R Lens is a "normal" lens equivalent to 53mm in 35mm format. The exceptionally fast, bright f/1.4 maximum aperture makes shooting in very low light possible and provides pleasing bokeh (the out-of-focus portion of a photo) with its 7-blade aperture design-ideal for dramatic portraits. This is a terrific All-in-One lens for everyday use.To take advantage of the X-Pro1's mirror-less design, the rear element of the lens is as close as possible to the sensor, minimizing the back focus distance appreciably. The lens construction includes a metal barrel, Super Evc coating for improved optical performance and it delivers improved centre-to-edge resolution and brightness free from chromatic aberration. This lens has a maximum magnification of 0.17x and the aperture ring has 1/3-stop click stops for more precise exposures..