Last Updated on November 17, 2025
There is a quiet kind of magic in the alchemy of early photography. Long before pixels, sensors, and software shaped our images, there were processes that relied only on light, chemistry, and patience. Among them, the cyanotype has remained one of the most enduring and beloved.
Perhaps it is the unmistakable Prussian blue or the tactile intimacy of a hand coated surface. Or perhaps it is the way this historic process offers a direct encounter with time, light, and material. Whatever the reason, cyanotypes have lived well beyond their scientific origins and continue to shape contemporary art practice today.
What Are Cyanotypes?
Cyanotype photography is a historical photographic printing method that uses iron salts and ultraviolet light to create images in deep Prussian blue. It is a non silver process that begins when a surface is coated with ferric ammonium citrate and potassium ferricyanide.
Once dried, this light sensitive layer reacts to sunlight, forming the signature blue image after washing and oxidation. The definition is simple, yet the experience feels far richer. To work with cyanotype photography is to stand at the intersection of science and intuition. It is a process that reveals how light touches the world.
Once the coated surface is prepared, objects or negatives are placed directly onto the paper. Exposure deepens the chemistry from a pale greenish wash to a muted bronze. Washing in water removes the unexposed solution and allows the blue to emerge.
As the print dries, oxygen carries the color into its final, almost celestial tone. Every cyanotype photograph becomes a record of light, gesture, and timing.
A Brief History of the Blue Print
Cyanotype was invented in 1842 by the English scientist Sir John Herschel. While researching ways to reproduce notes and diagrams, Herschel experimented with iron salts that darkened when exposed to sunlight. The result was a simple, inexpensive, and stable photographic process that produced images in deep, luminous blue.
Cyanotype might have remained a scientific tool if it were not for botanist and photographer Anna Atkins. She used the process to produce what is now considered the first photographically illustrated book, Photographs of British Algae. Her delicate contact prints elevated what began as documentation into art. For a fuller timeline of photography’s evolution and how cyanotype fits within it, see my article on the history of photography.
The beauty of cyanotypes caught the attention of artists and amateurs alike. Their simplicity, affordability, and graphic power helped the process survive even as silver gelatin later dominated photographic practice. Today cyanotype feels both old and new, a bridge between the origins of photography and a contemporary desire for handmade expression.
How You Can Make Your Own Cyanotypes
Creating cyanotype photographs at home requires only a small collection of materials, yet the process rewards care and attention. Understanding a few key principles will help the prints develop clearly and consistently.
Materials
• Cyanotype kit with pre measured chemicals
• Watercolor or cotton rag paper (ideally 200–300 gsm)
• Brushes or a glass coating rod
• Sunlight or a UV exposure lamp
• Sheet of glass or contact printing frame
• Water basin for washing
Step by Step Process
1. Prepare and coat the paper
Mix the two solutions separately, then combine them in a dim environment. Apply the mixture evenly with a brush. Streaks can appear if the solution pools or dries too quickly, so steady, overlapping strokes help create a uniform surface. Let the paper dry completely in darkness.
2. Arrange the composition
Place botanical elements, textured objects, or photographic negatives directly onto the coated surface. Transparent negatives allow more detailed cyanotype photographs, while solid objects create crisp silhouettes. A contact frame or a simple piece of glass keeps everything flat.
3. Expose to ultraviolet light
Sunlight works beautifully, yet the intensity changes by season and time of day. In bright summer sun, exposure may take only 5 to 8 minutes. In winter or under cloud cover, it may require 15 to 25 minutes. A UV lamp offers consistency, especially for photographic negatives.
Signs of proper exposure include a shift toward bronzed green. Underexposed prints will wash out. Overexposed prints may lose subtle details.
A UV lamp offers consistency, especially for photographic negatives. Many artists use 365–400 nm UV bulbs or dedicated exposure units, which allow for predictable timing and even illumination. LED UV lamps run cool, consume less energy, and shorten exposure times. Fluorescent UV tubes give a softer, more gradual exposure and are ideal for larger prints. Place the UV light 10 to 20 centimeters above the paper, adjusting distance to control contrast and exposure speed.
Signs of proper exposure include a shift toward bronzed green. Underexposed prints will wash out. Overexposed prints may lose subtle details.
4. Wash and reveal
Rinse the print in cool water until the runoff turns clear. This step removes unreacted chemistry and reveals the emerging Prussian blue. If the blue appears pale at first, allow the print to oxidize fully as it dries. A small amount of hydrogen peroxide in the rinse can deepen the color instantly, although the print would darken naturally with time.
5. Dry and finish
Lay the print flat or hang it to dry. The blue will settle into richer tones over several hours.
For readers who prefer to see the cyanotype process in action, this concise video offers a clear, step-by-step demonstration of coating paper, arranging a composition, exposing it to sunlight, and washing the final print. It is a helpful companion to the written guide above, especially if you are preparing your first cyanotype at home.
Working With Digital Negatives in Cyanotype Photography
Many contemporary artists create cyanotype photographs not only from found objects but from their own camera images. This is done by making a digital negative, a transparent film that functions like a traditional darkroom negative but is crafted on a computer. Working with digital negatives allows the cyanotype process to hold far greater tonal range, subtle detail, and narrative depth.
To create a digital negative, the photograph is inverted and adjusted so that its tonal values print correctly in Prussian blue. The file is then printed onto transparency film using a high-resolution inkjet printer. When placed directly onto the sensitized paper and held under glass, the negative blocks or transmits UV light in the same way an analog negative would. The parts with dense ink restrict exposure, producing lighter tones in the final print, while the transparent areas invite deeper blues.
This method expands what cyanotype photography can express. It moves the process from silhouettes into the realm of portraiture, landscape, abstraction, and conceptual work. The artist gains the structure of a photographic image while retaining the handcrafted unpredictability that defines all historic processes. Christina Z. Anderson, for example, uses precisely calibrated digital negatives in her work, showing how the dialogue between digital preparation and analog printing can open new creative possibilities.
Digital negatives also invite experimentation. Artists can adjust curves to shift contrast, print multiple negatives for layered exposures, or introduce softening textures that blend seamlessly with the fluid nature of cyanotype chemistry. What remains constant is the physical act of contact printing, where the negative, paper, and UV light meet in a single moment of exposure. Through this combination of planning and chance, digital negatives allow the cyanotype to bridge past and present, offering an image that feels both meticulously guided and shaped by light itself.
Troubleshooting for Clearer Cyanotype Photographs
• Faint images often result from underexposure or weak UV light.
• Uneven brush marks appear if the coating is too wet in some areas. Apply thinner layers.
• Paper washing away signals that the paper is not heavy enough or was not fully dry before exposure.
• Yellow staining can occur from incomplete washing. Extend the rinse time.
• Flat or dull color may come from using water with high mineral content. Filtered water can improve results.
Toning and Experimentation
Cyanotype photographs respond beautifully to toners. Tea, coffee, wine, and tannin rich botanicals can soften the blue into browns, purples, or deep greys. Double coating the paper increases contrast. Masking techniques, wet cyanotypes, and experimental exposures introduce controlled unpredictability. The process invites a conversation with the elements. For artists who enjoy the beauty of imperfection and natural variation, this connects closely to the wabi sabi approach I explore in my article on Wabi Sabi in Photography.
Longevity and Care
Cyanotypes are stable but sensitive to strong UV over long periods. They fade if kept in direct sunlight. Archivally framing behind UV protective glass helps preserve their richness. Store prints in acid free folders or boxes. With proper care, cyanotype photographs can last for generations. For a deeper understanding of long term preservation, see my article on archival photography.
Cost and Accessibility
Cyanotypes are one of the most affordable historical processes. A basic kit lasts for dozens of prints, and the process requires no darkroom. This accessibility is part of the reason artists, teachers, and beginners continue to adopt cyanotype photography as a first step into alternative photographic techniques.
A basic kit of premixed chemicals usually costs between 20 and 30 euros and lasts for dozens of prints. Good watercolor or cotton rag paper ranges from 1 to 4 euros per sheet depending on weight and brand. UV exposure can be done entirely with sunlight or with a lamp that ranges from 25 to 60 euros for a small panel. Beyond these essentials, most tools such as brushes, trays and glass plates are inexpensive and often already available in a home studio.
Why Cyanotype Aesthetics Compel Us
There is something elemental about the palette of cyanotype photography. The contrast between radiant white and saturated blue creates a clarity that feels both modern and ancient. The viewer senses the physical presence of the sun and the invisible movement of time. Artists have long understood the emotional weight of blue. Even Picasso devoted an entire period to exploring its mood and depth. Cyanotypes carry a different kind of blue, one that feels luminous and open, yet they remind us of the same truth: blue offers a space for reflection, stillness, and quiet intensity.
Cyanotype photography also carries a sense of transience, as if the blue itself were borrowed from water, arriving on the page the way waves leave their brief impressions on sand. There is a feeling that the image could wash away at any moment, a quiet ephemerality that echoes the ideas I explore in my article on ephemeral art in the light of Heidegger, where presence is always shaped by the possibility of disappearance.
The contrast between radiant white and saturated blue creates a clarity that feels both modern and ancient. The viewer senses the physical presence of the sun and the invisible movement of time. Cyanotypes hold our attention because they show how light leaves its mark.
Artists Working With Cyanotype Today
Many contemporary artists continue to explore what this nineteenth century process can express in the present moment.
Christina Z. Anderson
A leading voice in alternative photographic processes, Anderson expands cyanotypes into layered, concept driven works that study memory and the tension between clarity and obscurity. She also teaches extensively on cyanotype photography, offering deep, practice based insight into how different papers, chemical formulas, coating methods, and environmental conditions shape the final image, making her one of the most knowledgeable voices on the process today.
In her series Cyanotype: Singing the Blues, photographer and author Christina Z. Anderson pushes cyanotype photography far beyond the familiar fern and lace photograms. Her images begin as camera photographs, then are turned into carefully calibrated digital negatives that are contact printed in cyanotype chemistry on hand coated watercolor paper.
The result is a body of work that looks at first like blue washed silver prints, yet remains firmly rooted in the cyanotype process: iron based sensitizer, UV exposure, and development in water. Anderson’s practice shows how elastic the medium can be, moving from simple silhouettes to rich, tonal photographs that still carry the unmistakable emotional weight of Prussian blue.
Kate Cordsen
Cordsen creates atmospheric cyanotype photographs that feel suspended between landscape and abstraction. Her surfaces seem to breathe, inviting slow looking.
Lrousso.
Her cyanotype photography therefore sits somewhere between painting and photography: the blue isn’t simply a hue, it acts like a field of memory, an atmosphere, an index of process. The folds, the linen weave, the way the chemistry settles all become part of the visual and tactile experience. When you view a Cordsen cyanotype large panel, you feel the surface-object presence, you sense the materiality of the paper and the chemical reaction beneath the blue.
Meghann Riepenhoff
Riepenhoff works directly with rain, oceans, storms, and snow. Her cyanotypes are collaborations with the natural world, shaped by movement, water, and the unpredictability of weather.
In her series Littoral Drift, Meghann Riepenhoff submerges cyanotype-coated paper into surf and shoreline sediment, allowing the sea itself to leave its mark as wave, sand and salt. The resulting cyanotype photographs are not simply images of water but records of water’s action: wave crests, sediment deposits, light shifts and time passing. Through this method she expands what cyanotype photography can mean today, where process, place, material and impermanence are inseparably entwined.
Conclusion
Cyanotype photography endures because it offers something that contemporary image-making often forgets: a direct, physical conversation with light. The process is simple, yet it opens a wide field for creative thought. A sheet of hand-coated paper becomes a place where sunlight, chemistry, intention and chance converge. Whether one works with botanical forms, digital negatives, or the restless edge of the sea, the cyanotype holds the mark of an encounter. It remembers the gesture of a brush, the weight of sediment, the silence of a winter sky.
To explore cyanotype is to return to the roots of photography while stepping into an open, experimental present. It teaches patience. It rewards curiosity. It invites us to slow down long enough to see how blue carries emotion, memory, and movement. And it offers a way of making images that feel both grounded and transcendent, as if the world itself were offering its imprint.
