Cyanotype

サイアノタイプ / 1842– / Technique / Photographic Techniques

Fixes the outline of a light-struck object directly into deep blue, making record and lyric the same image.

Cyanotype — Anna Atkins, Dictyota dichotoma, 1843–53 — Wikimedia Commons / Public domain
Anna Atkins, Dictyota dichotoma, 1843–53 — Wikimedia Commons / Public domain
Cyanotype — Atkins, Photographs of British Algae, vol. 3 — Wikimedia Commons / CC0
Atkins, Photographs of British Algae, vol. 3 — Wikimedia Commons / CC0 · CC0
Cyanotype — Architectural blueprint, 1902 — Wikimedia Commons / No restrictions
Architectural blueprint, 1902 — Wikimedia Commons / No restrictions

At a glance

Visual cues

  • Prussian blue
  • White object traces
  • Contact shadows
  • Chemical unevenness

Best used for

  • Directly recording plants, materials and objects
  • Adding the trace of handwork to drawings and archives

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Dictionary entry

Type
White or pale letters; add small classification labels
Composition
Lead with the object's contour; keep generous blue around it
Material
One deep blue and the paper's white; don't polish away the exposure marks
Caution
A blue filter is not the technique. Understand contact image, exposure and support.
Further study
Anna Atkins / John Herschel / photographic printing processes

Related entries

Often confused with

More from Photographic Techniques

Continue through styles in the same Photographic Techniques family, prioritised by shared effects.

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Link
https://indexstyle.org/styles/cyanotype
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[Cyanotype — IndexStyle](https://indexstyle.org/styles/cyanotype)
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<a href="https://indexstyle.org/styles/cyanotype">Cyanotype — IndexStyle</a>

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