Laboratory & processes Reading time: 2 min
Cyanotype: a handmade photographic process in blue
Cyanotype is a handmade photographic process that produces a blue image. UV light acts on a sensitised surface, then washing reveals the image. Each piece retains the character of the maker’s hand.
An image made by light
The surface, often paper, receives a light-sensitive coating. Once dry, it is exposed to UV with a negative or objects in direct contact. Washing in water reveals the image. This process uses chemistry different from silver-based photography; it is not simply an inkjet print tinted blue.
Photogram or photograph?
Leaves, plants and objects can leave their silhouette directly on the surface: this is a photogram. Reproducing a photograph requires a contact negative, which can be prepared from a digital file. Since exposure is by contact, the negative’s size matches the resulting image.
Texture and variation
Coating, paper and exposure all contribute to the result. Visible brush edges, tonal variations and small differences are part of the process’s expression. Cyanotype lends itself to visual exploration, a series or a unique piece. It is not intended to reproduce the original’s colours faithfully.
Developing your project
Bring a photograph, a composition idea or a set of shapes. We discuss size, surface and the desired effect before defining the work. For a series, a test helps approve contrast and texture. Possibilities, lead time and price are agreed with the studio.
Presentation and preservation
Mounting and materials should respect this particular process. Avoid improvised treatments and seek advice before mounting or framing. As with any work on paper, consider its location and exposure to light.
Your questions
Can I start with a phone photograph?
Yes, if the file suits the project. An appropriate contact negative can be prepared from a digital image.
Does cyanotype reproduce colour?
No. It interprets the image in blues and whites: a distinct aesthetic choice.