A solid-state image sensor includes photo-sensitive cells arranged in a bidimensional array for converting incident light to corresponding signal charges. Vertical transfer paths transfer the signal charges read out from the photo-sensitive cells in the vertical direction. The photo-sensitive cells are made up of first and second photo-sensitive cells each having particular sensitivity to incident light. The first and second photo-sensitive cells are positioned at one diagonal corners and the other diagonal corners, respectively, at opposite sides of each vertical transfer path such that the first and second photo-sensitive cells have photo-sensitive areas whose centers of gravity form a rectangle when connected by a virtual line.