Core Photography (AHR)

Duplicate photographs of boxed core were made with both FP4 black and white film and Ektachrome 200 colour slide film. The core was photographed following the insertion of wooden blacks showing core number and sub-bottom depth and where possible prior to both core description and sampling.

Two 35 mm cameras with 50 mm lenses, mounted 1.1 metres above the core on adapted tripods were used. A Sunpack model 411 electronic flash was used for lighting with a double layer of tissue taped to the front to diffuse the light. A centimetre scale, Kodak colour separation guide and grey scale were used and are visible in each photograph.

The black and white film was processed at Scott Base and printed on 10 × 8 Ilfospeed grade 3 paper. These photographs were found to be extremely useful for both locating sample positions and for general use.

Colour film was processed in New Zealand.