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Night Aerial Map

Using specially developed technology to capture night time aerial photographs, Bluesky's night aerial map images can be used directly in a desktop mapping tool or geographical information system (GIS). This fascinating product provides additional intelligence for Government Authorities and other organisations that are responsible for lighting infrastructure. There are also applications in light pollution, energy conservation, crime mapping, public health and ecology.

Night aerial map surveys provide colour aerial photographs recording light emissions across an entire city or region in one night. These images are stitched together and supplied as an orthorectified map. This map can be overlaid directly into a GIS providing intelligent geospatial information to support strategies and local campaigns. Precise metadata is also supplied in GIS format; this gives an exact time of capture for each of the individual aerial images within the survey. A Nightsky surveys offers a recorded 'snapshot' in time, mapping light emissions within a geographic region.

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Low Light Photography

Low light, or night time photographs are images captured between dusk and dawn. It is possible to capture the standard artificial lighting or to use long exposure times and capture the natural environmental light, such as moonlight.

The dawn of digital photography brought new challenges to the process of capturing low-light photography. At the start of this revolution, these photographs could only be captured using long exposures. This meant that trying to photograph a moving subject during the twighlight hours became almost impossible without supplementary light sources.

However, recent developments in digital camera sensor technology and lens optic manufacturing techniques have enabled the latest generation of digital cameras to capture images in near zero light.

This has brought about a new era of aerial photography, with cameras able to take crisp, clear and high speed images during the darkest hours of the day.

Night mapping is based on this technological leap. Now it is possible to see which areas of a town or city are well lit and which are not. It also possible to see which parts give off the most light pollution and of what colour. This development brings an important new layer of information to suit many GIS datasets.