Covering an angle of view that is close to that of the human eye, the Fujinon XF 35mm f/1.4 R lens fits into the 'standard' category and is the one most likely to be chosen by buyers of the X-Pro 1 single-lens kit.
It's offered with the Fujifilm X-Pro 1, You require superior performance and robust build quality, You want a lens with excellent flatness of field, You like shooting with filters; Don't buy this lens if, You need close focusing and macro capabilities.