Fuji and X100s, the upgraded product launched this year, use 16 million pixels APS-C frame, and no low-pass filter makes the picture clear and sharp. Non interchangeable mirror design, using a 23mm F2 Fujiron lens, equivalent to 35mm, standard human focal section. The public praise of X100s is quite good, and its retro appearance has become quite coquettish. FUJIFILM X