A darkroom lamp is a laboratory photographic aid. It is used to illuminate a darkroom without affecting the photographic material. This is achieved by using light at wavelengths to which the photosensitive material does not respond.
In black and white photography , the darkroom is often very weakly illuminated with a red wavelength . However, this is only possible for the enlargement process, since photo paper is orthochromatically sensitized. Corresponding footage also reacts to red light.
- Robert Hirsch: Photographic Possibilities: The Expressive Use of Equipment, Ideas, Materials, and Processes . 3. Edition. Focal Press, New York 2013, ISBN 978-0-240-81013-3 , pp. 113 (English).