Provia 100F [RDP III] was developed to replace Provia 100 [RDP II] and Provia 400X [RXP] was developed to replace Provia 400F [RHP III], improving on colour image storage permanence and colour fading resistance.
The introduction of Provia 100F [RDP III] and Provia 400X [RXP] marked a significant upgrade from their predecessors, Provia 100 [RDP II] and Provia 400F [RHP III], with the aim of enhancing colour image storage reliability and resistance to colour degradation.