自从1816年发明了照相术以来，照相技术已经经历了几次革新，一次是彩色底片的发明，一次是一次性成像的相机的发明，一次是数码照相术的发明。现在，又一次重大革新出现了，这就是酸化成像底片的发明。 传统的底片用的感光剂是溴化银，新的技术是用酸来代替溴化银作为 Since the invention of photography in 1816, photography has undergone several innovations. One was the invention of a color negative film, one was the invention of a one-time imaging camera, and the other was the invention of digital photography. Now, another major innovation has emerged. This is the invention of the acidified imaging film. The traditional sensitizer for the film is silver bromide. The new technology uses acid instead of silver bromide.