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Polarised
Cross Section
Photomicrography
Collaboration 008
by Wim Van Egmond
Photographing a thin section of cantera stone with a microscope.
 Stones are motionless. In order to make a movie Wim van Egmond made use of polarisation microscopy. With crossed polarisation filters above and below the stone sample, the mineral inclusions that are typical for the cantera stone light up in different colours. By rotating the samples and the camera at the same angle the colours shift. The technique of polarisation has been used since the early 19th century to study rock minerals.
Still images were made with a very high resolution by making panoramic composites. This way it is possible to make large format prints with a high magnification and an extreme resolution.
About Wim Van Egmond
 Science has always fascinated Wim and his work has a certain affinity with it. Photography is an unusual mixture of technique and perception: the camera acts as a surrogate eye, a mechanical observation device that enables us to capture an image.

He is particularly interested in those areas where photography deviates from human perception. This is one of the reasons why he made a study of optical techniques that can be used to increase the scope of our perception. He has specialised in photography through the microscope and in stereoscopy and a combination of both. The past years he has started filming and making time lapse movies.

He works primarily as an independent artist, but because his work brings together both art and science, a part of his images and films are being used as scientific illustrations.

www.wimvanegmond.com