Fujichrome PROVIA 400X, which was released in February 2006 by Fuji Photo Film Co., Ltd. is the highest in imagestructural qualities and color saturation as well as long-term image stability among ISO 400 color reversal films. These new features have been realized by the following state-of-the-art innovative technologies; Epitaxial Sigma Crystal technology, Pure, Stable & High-performance dye-forming Coupler technology, and Multi-Color-Correction Layer technology.