How long is the normal service life of pcb film negatives?

6 months. According to the query of relevant public information, the use of film films is one-time. Repeated use will cause blurred effects and a relatively short service life. It begins to age after 6 months. Therefore, the service life of PCB film negatives is 6 months. Film negative is the film (film) negative of a film camera. There are color film (film) and black and white (full color) film (film). It is a consumable for photography and the largest cost in photography.