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Intro to Photography

Notes

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Chapter 3: Film Grain / Noise

Film Grain
Film grain is the texture that is created from the chemical development process on the final image of the print. Many settings and technical choices effect the amount of film grain that emerges in the final print.
Digital Noise
Digital noise is the texture created from the internal digital process that occurs inside your digital camera. Noise occurs when the digital signal is boosted usually because there is not enough light and the camera boosts the brightness of the pixel.

Digital Noise Example

This is an example of digital noise.

Film Grain Example

Wiki Source
Deutsch: Starkes Korn bei einem auf ISO1600 belichteten und entwickelten Schwarzweiss-Kleinbildfilm Ilford HP4, entwickelt in Neofin rot. Ausschnitt.
Source

own work
Date

scanned 2005-11-27
Author

User Smial on de.wikipedia

How do you remove or create grain in Film?

  1. Film stock that has a high ISO is grainy.  800 ISO and up will create visable grain.
  2. If you are manually developing negitives, over agitage the film stock when developing.
  3. When manually developing photos over agitagte the photo paper in the developer chemical.

How do you create digital noise?

  1. Set your digital ISO to 1600 ISO or higher to create obvious digital noise.

Chapter 4: Available Light and White Balance »

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