Howtosignalprocessing
- What are the characteristics of photographic film?
- What is analog process in photography?
- What is the difference between analog and digital photography?
- Why is film called analog?
What are the characteristics of photographic film?
Photographic film is a strip or sheet of transparent film base coated on one side with a gelatin emulsion containing microscopically small light-sensitive silver halide crystals. The sizes and other characteristics of the crystals determine the sensitivity, contrast, and resolution of the film.
What is analog process in photography?
The term 'Analogue Photography' refers to photography using an analogue camera and film. A roll of film is loaded into the camera and the magic begins once you start clicking: light interacts with the chemicals in the film and an image is recorded.
What is the difference between analog and digital photography?
With film photography, the image (shadow) is fixed by a photosensitive material usually made with silver that reacts to the light, capturing the image on various sized grains of silver. With digital photography, an electronic sensor reacts to the light, capturing the images on identically sized pixels.
Why is film called analog?
When exposed to light, plastic-based film creates an "analog" of the actual scene. Film was never called analog until digital cameras came on the scene.
