The photo blog

Tutorials, techniques and the history of pinhole photography and cyanotype

Diagram of how a pinhole camera works, showing light forming an inverted image through a hole

How does a pinhole camera work? The principle explained

How does a tiny hole form an image without a lens? The path of light, the inverted image and the infinite depth of field of the pinhole camera, explained step...

How does a pinhole camera work? The principle explained

How does a tiny hole form an image without a lens? The path of light, the inverted image and the infinite depth of field of the pinhole camera, explained step...

Objects tracing the history of cyanotype, from the Victorian plate to the Prussian blue blueprint

Cyanotype history, from Herschel to the blueprint

The history of cyanotype at a glance: its invention by Herschel in 1842, Anna Atkins's scientific use, its long life as the blueprint and its artistic revival. By Éric Marais.

Cyanotype history, from Herschel to the blueprint

The history of cyanotype at a glance: its invention by Herschel in 1842, Anna Atkins's scientific use, its long life as the blueprint and its artistic revival. By Éric Marais.

Engraving from 1752 showing an outdoor scene projected upside down in a camera obscura.

Pinhole camera history, from its origins to photography

The history of the pinhole camera at a glance, from the camera obscura observed in Antiquity to the birth of photography in the 19th century. The timeline by Éric Marais.

Pinhole camera history, from its origins to photography

The history of the pinhole camera at a glance, from the camera obscura observed in Antiquity to the birth of photography in the 19th century. The timeline by Éric Marais.

Prussian blue cyanotype print with a white fern silhouette, illustrating the definition of the process

What is cyanotype? The photographic process that prints in blue in the sun

The definition of cyanotype explained simply. Etymology, contact printing in the sun, Prussian blue and its place among alternative processes. By Éric Marais.

What is cyanotype? The photographic process that prints in blue in the sun

The definition of cyanotype explained simply. Etymology, contact printing in the sun, Prussian blue and its place among alternative processes. By Éric Marais.

Black Sténoflex camera on a table, with its central hole and hand-shaped shutter.

Pinhole camera definition: a simple, clear explanation

What is a pinhole camera? The French word sténopé means both the tiny hole and the lensless camera that uses it. Definition, origin and link with the camera obscura.

Pinhole camera definition: a simple, clear explanation

What is a pinhole camera? The French word sténopé means both the tiny hole and the lensless camera that uses it. Definition, origin and link with the camera obscura.

Cyanotype studio showing the stages of the process through to the Prussian blue print, complete guide

How to make a cyanotype: what it is, how it works and how to start

What cyanotype is, why it is blue, the supplies, the six steps of making a print, the surfaces, colour toning and keeping your prints.

How to make a cyanotype: what it is, how it works and how to start

What cyanotype is, why it is blue, the supplies, the six steps of making a print, the surfaces, colour toning and keeping your prints.

Workshop flat lay bringing together a pinhole camera and black and white prints for a complete guide to pinhole photography

Pinhole photography: definition, how it works and a beginner’s guide

What a pinhole camera is, how an image forms without a lens, how to build a camera obscura, how to estimate exposure times and how to develop your photos.

Pinhole photography: definition, how it works and a beginner’s guide

What a pinhole camera is, how an image forms without a lens, how to build a camera obscura, how to estimate exposure times and how to develop your photos.