Photographic recording

Photography is an essential tool for recording heritage as part of a broad range of projects. As well as using film photography, both 35mm and medium format, we make extensive use of a range of digital cameras including full-frame professional grade systems.

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We often use photography in conjunction with Mobile Geographic Information Systems (GIS) as part of walkover surveys and condition assessments to allow us to build up a digital photographic record and register as we go, including the location of each photograph. This also allows for integration into our database/GIS based reporting and analytical systems on return to the office.
 
High Dynamic Range (HDR) photography involves capturing a range of photographs from the same location with different exposure settings so as to capture a broader range of highlights and lowlights. A single image will typically contain some over- and under-exposed areas and the HDR technique allows a single composite image to be constructed which reduces or eliminates these extremes, allowing detail in darker and brighter areas to be seen in the same image.

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Rectified Photography is a method which combines direct data capture using Total Station Theodolites (TST) with photographic images, producing a scaled, orthographic image which as well as being a photographic record has the properties of a measured survey. This provides a visual record of the subject as well as the ability to measure distances within the image.
 
Panoramic Photography allows a seriesof imagesto be composited into one interactive view, often called a bubbleworld. A series of photographs are taken from a single location using a tripod and (optionally) with a special tripod head designed to reduce distortion between images as the camera is rotated around the scene. These images are then projected onto the inside of a virtual cylinder, sphere or cube so that when viewed from the camera position, they form a complete 360° scene.

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