1, photos can be seen immediately after the picture, providing possibility of immediate remake to unsatisfactory work, reduce the incidence of regret.

2 and only need to pay for pictures that you want to wash, others don't need pictures can be deleted.

3. Color reproduction and color range is no longer dependent on the quality of film.

4. Speed is no longer fixed by the film. Photoelectric conversion chips can provide a wide range of speed and choice.