Fuji FinePix X-PRO1 Digital Camera Body
Moiré is tackled at its root cause by the revolutionary X-Trans CMOS sensor's color filter array. By enhancing aperiodicity (randomness) in the array arrangement, the color filter minimizes generation of both moiré and false colors, eliminating the necessity for an optical low-pass filter in the lens and enabling X-Trans CMOS sensor to capture full “unfiltered” lens performance.  The EXR Processor Pro is supported by an integrated co-processor for higher speed and higher precision image processing performance.
New Filter Array
   

Higher degree of randomness with an array of 6x6       Inspired by the natural random arrangement of the       No optical low-pass filter
pixel untis.  Without using an optical low-pass filter,      fine grains of silver halide in film.                                     1. Lens
moire and false colors are eliminated while                                                                                                            2. Sensor
realizing high resolution.

XF Lens
Designed especially for the X-Pro1, the FUJINON XF Lens series promises enhanced resolution and light volume in image edge areas as well as reduced chromatic aberration for exceptional image quality. Featuring an all-glass aspherical lens and other elements, the lens is polished to perfection and treated with Super EBC coating. Holding the high-quality metal barrel and operating the precision-machined 1/3-step aperture ring is a sensation that fires the desire to capture every scene. For photographers who seek the peak of photographic excellence, FUJIFILM raises the curtain on a new era of interchangeable lenses and unveils a premium lineup of 3 single-focal length lenses.
X Mount
Taking full advantage of the mirrorless design, the mount boasts a short 17.7mm flange back distance, a wider opening and deeper mounting of the lens, resulting in reduction of back focus distance to the minimum possible while achieving high resolution extending to the image edge areas. When a FUJINON XF lens is mounted, all lens information is instantly communicated to the body, integrating them into a seamless, responsive instrument.

A wider opening and deeper mounting of the lens
1. Short back focus
   • Distance between the rearmost lens element and sensor
   • Reduction of the back focus distance and collection of light straight from the lens enhance resolution by preventing loss of light volume. 

Hybrid Multi Viewfinder
Featuring the freedom to switch between an optical and electronic viewfinder, the Hybrid Viewfinder has evolved to meet the challenge of interchangeable lenses. When an XF series lens is mounted, lens data are communicated to X-Pro1, and viewfinder magnification (2 types) and frame size (multiple steps) are automatically switched. Peering through the viewfinder with all your attention focused on the subject. This simple style of shooting is the both the first step back to the essential pleasure of photography. Every lens change reveals a new world of beauty to capture.
Viewfinder magnification automatically changes when an XF series lens is mounted, and because there is very little noticeable difference in the angle of view when switching between OVF and EVF, viewing in either mode is smooth and natural.