The RA-4 process is a chemical development method used to produce color prints from color negatives. It consists of three main steps: developing, bleach-fixing, and washing. This process offers precise color reproduction and sharpness.

Fuji Crystal Archive Paper is specially designed for this process, known for its high color stability, vibrant colors, and contrast-rich prints. It is commonly used for professional photo prints, gallery work, and archival purposes, delivering long-lasting and high-quality results.