Monthly Archives: November 2013

Photographing Geology Specimens

This image of Quartz crystals was commissioned for exhibition at University of Edinburgh Main Library but has also found a home at the School of Geo Science website http://www.geos.ed.ac.uk/facilities/ionprobe/TiQuartzStandards/ The image was created using 9 separate exposures each focusing on a different part of the crystal. Those were then imported into Photoshop as separate layers and a layer mask was added to each layer. Using the mask on each layer its was possible to hide or reveal parts of each individual exposure. This technique was used to create an image where many areas are in sharp focus to highlight the rich details of the crystal. The studio set up for this type of work consumes a lot of physical working space as demonstrated in the studio shots which can be seen below.

Malcolm Brown

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Meteorites and Fossilised Rain Drops

This week the Digital Imaging Unit have been photographing the Gibeon nickel iron meteorite EUCM.110.759.  This fell in prehistoric times in Namibia, named after the nearest town.  Made into tools by the Nama people. Analysed and confirmed as a meteorite in 1836. The wonderful pattern is called a Widmanstätten pattern. We have also been photographing the Imilac stony iron pallasite meteorite EUCM.0647.2008 found in the Atacama Desert in Northern Chile in 1822. The meteorites along with some amazing fossilized rain drops and various crystals will all feature in an exhibition opening in the Main Library exhibition space on December the 5th called Collect.ed.

Malcolm Brown

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