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Carbon Print

1864, Joseph Swan's perfected transfer process

Typeface · Crimson Text

Carbon Print of Classical Greek Sculptures. A photograph captures classical Greek sculptures resting on pedestals.
Carbon Print of Classical Greek Sculptures. A photograph captures classical Greek sculptures resting on pedestals.Adolphe Braun · CC0 · via Wikimedia CommonsView source ↗

Prompt

Transform this image into a Carbon Print with deep charcoal pigment, warm neutral midtones, crisp fine detail, and an expansive, unfaded tonal range. Add a subtly textured paper base and slight gelatin relief in dense shadows, with restrained surface sheen and no halftone pattern. Keep the original subject and composition.

Paste it into LetzAI with your own image to apply the effect ↗

Identify

You see a rich, highly detailed photographic print. It often features deep charcoal, sepia, or warm brown tones without any fading.

Principle

Light hardens a mixture of gelatin1 and pigment mixed with potassium dichromate2. Unexposed, soft gelatin washes away in warm water.

Example

Thomas Annan: The Old Closes and Streets of Glasgow, 1868.

Try it out

Look closely at a vintage photograph's darkest shadows; a true carbon print shows a slight physical relief.

Background

In the 1850s, early silver photographs faded quickly. Photographers urgently needed a permanent alternative. Alphonse Poitevin discovered that dichromated gelatin hardens when exposed to light. In 1864, Joseph Swan perfected the carbon process. He coated paper with gelatin, potassium dichromate, and permanent carbon pigment3. After exposure beneath a negative, he transferred the image to a new base. Warm water washed away the unhardened gelatin. The remaining pigment formed a stunning, fade-resistant image. This complex method created durable, richly toned prints that survive perfectly today.

Distinction

Unlike albumen or silver prints, carbon prints do not rely on light-sensitive silver. Therefore, they never yellow or fade over time.

Aftermath

It proves that utilizing chemically stable pigments can preserve photographic history indefinitely.

Further examples · 11 images

Detailed Carbon Print of Hunting Still Life
02 Detailed Carbon Print of Hunting Still LifeA highly detailed still-life arrangement features hanging game birds and hunting equipment. Its deep charcoal hues and exceptional tonal range clearly demonstrate the carbon print process.Adolphe Braun · CC0 · Wikimedia Commons
Historical Architectural Carbon Print of an Alleyway
03 Historical Architectural Carbon Print of an AlleywayA dark, narrow cobblestone alley is flanked by tall, textured stone buildings. The warm brown tones and sharp contrast are typical of historical architectural carbon prints.Thomas Annan (British, 1829 - 1887) (1829 - 1887) – photographer (British) Details on G… · Public domain · Wikimedia Commons
Sepia-Toned Carbon Print of a Narrow Street
04 Sepia-Toned Carbon Print of a Narrow StreetA historic street scene looks down a narrow, sunlit alley with a hanging sign. This image exhibits the continuous tone and rich sepia color indicative of carbon printing.Thomas Annan (British, 1829 - 1887) (1829 - 1887) – photographer (British) Details on G… · Public domain · Wikimedia Commons
Sweeping Landscape Captured as a Carbon Print
05 Sweeping Landscape Captured as a Carbon PrintA sweeping landscape photograph shows a deep valley with a high waterfall in the distance. The expansive tonal range from deep shadows to bright highlights perfectly showcases the carbon printing technique.Adolphe Braun · CC0 · Wikimedia Commons
Striking Portrait Rendered as a Carbon Print
06 Striking Portrait Rendered as a Carbon PrintA striking portrait of a man with intense eyes is rendered in warm brown tones. The seamless continuous tone and unfaded pigment identify this portrait as a classic carbon print.Étienne Carjat · Public domain · Wikimedia Commons
Warm Sepia Carbon Print Portrait of a Man
07 Warm Sepia Carbon Print Portrait of a ManA profile portrait of a distinguished, bearded man is presented in deep, warm sepia. The photograph's fine details and enduring pigment perfectly embody the visual qualities of a true carbon print.Julia Margaret Cameron / Adam Cuerden · Public domain · Wikimedia Commons
Carbon Print of a Narrow Stone Alleyway
08 Carbon Print of a Narrow Stone AlleywayA historical photograph of a narrow alleyway with a wooden cart and hanging laundry. The deep charcoal tones and crisp details with no visible fading are classic indicators of a carbon print.Annan, Thomas · Public domain · Wikimedia Commons
Carbon Print of a Dark Historic Courtyard
09 Carbon Print of a Dark Historic CourtyardA dark, narrow courtyard featuring stone walls, hanging clothes, and steep wooden stairs. The rich, unfaded sepia-charcoal gradient and stark contrasts perfectly demonstrate the carbon print photographic process.Annan, Thomas · Public domain · Wikimedia Commons
Carbon Print Photograph of a Populated Courtyard
10 Carbon Print Photograph of a Populated CourtyardA historic street scene showing a group of children and adults in a stone courtyard with a large cart. The excellent preservation of detail and rich, stable pigment tonality are hallmarks of genuine carbon prints.Annan, Thomas · Public domain · Wikimedia Commons
Carbon Print of an Alley with Wooden Bridge
11 Carbon Print of an Alley with Wooden BridgeA shaded urban alleyway with a wooden walkway bridging the gap between stone buildings. Showcasing deep, lasting blacks and smooth midtones, this photograph is a classic example of a carbon print.Annan, Thomas · Public domain · Wikimedia Commons

Question

Why must the exposed carbon tissue be transferred to a new base before washing?

Show possible answer +

Light hardens the gelatin from the top down. Without transferring, the unhardened bottom layer would dissolve and ruin the image.

Sources