Keld Helmer-Petersen is one of the most influential Danish photographers in the 20th Century, inspired by Albert Renger-Patzsch. He was an international pioneer in colour photography and was a central figure in not only Danish but also European modernist photography. He continuously experimented and challenged the many possibilities of the photographic image. In 1956 Helmer-Petersen established himself as a professional architecture photographer, he achieved fame for his colour photographs but he also published several books of black and white images that explore dramatic contrasts of tone. All mid tones have been removed. He created and found these images, using both cameras and flat bed scanners to achieve the effects he was looking for. These books are beautifully designed and encourage us to consider the space around the image.

The threshold tool creates a silhouette and it flattens 3D objects and creates a strong, dramatic contrast between the black and white tones.