Sepia (photography)
Photographs with the property sepia are kept in the yellowish-brownish color sepia over the entire picture surface and have a reduced color range. Sepia photographs are created in different ways:
- In old photographic prints, the black portion becomes brownish due to UV radiation and the white on the paper becomes yellowish-creamy over time. Most prints that are 70 years or older show this sepia characteristic.
- With black and white prints, certain chemical dye baths, for example based on thiourea and sodium hydroxide , can produce sepia tones.
- Nowadays digital cameras usually have a corresponding mode. Many image editing programs also allow you to apply this effect afterwards.
- For printed images, e.g. B. in offset printing , a good sepia effect can be achieved by printing a black and white image with a spot color, the so-called duplex printing .
example
Below is the same digital image in full color, faded, sepia, and grayscale:
Color photo
Faded
Sepia effect
Grayscale
Web links
Commons : Sepia Photographs - collection of images, videos, and audio files
Individual evidence
- ^ L. Bartlett, J. Tarrant: Workshop black and white printing . Augustus-Verlag, Augsburg 1997, ISBN 3-8043-5105-0 .
- ^ U. Raffay: Collection of photographic recipes . CG-CHEMIE phototechnical advice, Hamburg 1985.