Karl E. Deckart
Soap Bubble Gallery: Image Six
German photographer and artist Karl E. Deckart is known for his thorough, precise, and beautiful work both in photography through the microscope and with macro camera systems. This gallery of interference photographs made with soap films is a testament to both Deckart's skill as a photographer and his understanding of the physical phenomena that surround our everyday lives. Presented below is soap bubble image number six in small format. Click on the image to download a larger version.
Macrophotography of thin soap films freely suspended on a 4 x 4-inch wire frame was conducted with a Linhof large-format bellows camera system utilizing 4 x 5-inch sheet film and imaged using an apo-macro Nikon large format Nikkor-AM ED 210 mm f-5.6 lens. To prepare the soap film, equal parts of water, glycerin, and dishwasher detergent are thoroughly mixed in a container until a solution containing evenly sized micelles is achieved. A freestanding film is formed by dipping the wire frame into the solution and withdrawing carefully to maintain an even film thickness and avoid disruption of material flow across the frame rails. After suspension, the film was illuminated by a reflected light source positioned a few degrees from the camera system. The light was passed through a diffusion screen to avoid bright spots and provide an even illumination across the field. No polarizers were employed in photomacrography of soap thin films. Image ©1999 by Karl E. Deckart. All rights reserved.
Delicate shimmering spheres with surfaces of constantly shifting swirls of color, soap bubbles derive their beauty from basic principles in optics and quantum physics. Molecular turbulence forms tiny vortices along the film's surface creating swirls of spiraling colors as light interplays along the bubble membrane. Color is produced by interference between light reflecting from the outside and inside surfaces of the soapy film. In-phase beams of light combine to display shimmering iridescent colors that smoothly transition along whirling fluid molecular movements.
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