Aerial photography from the Casey region taken during January 2011 used for Adelie penguin analysis

The daily weather observations from Casey Station for 2 January 2011 were 14.0 hour of sunlight, winds from the North at 6-13 knots and 2/8 cloud cover. Photographs of the Frazier Island group were taken on the 23 January 2011. Aerial photos were taken from a CASA C212 airplane (VHA) flying at ~140 knots and ~750m altitude using a Nikon D200 camera with a 55 mm real lens which is converted to a 75 mm lens (including the focal length magnification factor of 1.5 for non-35mm format).

The Nikon D200 camera was set to normal which allows for varied speed and aperture and was set on autofocus. A 3-second shutter closure interval was programmed using an external intervalometer. All photographs were recorded on the cameras internal memory card and downloaded after the flight was over.