Black and white darkroom technology, photography technology, for most photographers, taking pictures is only the first step in many aspects of photography. They don't send black and white films to photo studios or photo studios to develop their own photos.

It is meaningful to do darkroom work by yourself; Photographers can learn more about photography; You can directly control every step of the whole process of image making by yourself; You can adjust the standard development process and print photos according to your own hobbies. In addition, what's more exciting is that you can watch the photos take shape gradually under the red light of the darkroom safety light.

Photographers working in darkrooms have at least these advantages, maybe more.

rubber

1. The main components of the film are: a. photosensitive emulsion b. film base.

2. Six-layer structure: protective layer, latex layer, bottom layer, film base, second adhesive layer and shading layer.

A. Composition and function of protective layer:

Composition: Made of gelatin, with a thickness of about 1-2 microns.

Function: prevent the film from being scratched during friction.