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Added on 12/31/07
Use the focal length calculator in the Lens chapter of Making Photographs before getting into the aircraft. Plan on being 1000' above the subject in an airplane or 300' in a helicopter. If the project is to photograph a house on a quarter-acre lot...
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Use the focal length calculator in the Lens chapter of Making Photographs before getting into the aircraft. Plan on being 1000' above the subject in an airplane or 300' in a helicopter. If the project is to photograph a house on a quarter-acre lot (100' square) with a small-sensor digital SLR, for example, the required lens is 225mm from an airplane or 70mm from a helicopter. In attempting to capture the experience of flying, true wide-angle focal lengths between 16 and 28mm (full frame) are the most useful. The wide lens will inevitably include parts of the aircraft in the image, but that was part of your experience. When including the interior of the aircraft, e.g., the pilot or a passenger, experiment with using an on-camera flash to balance the comparatively dim light inside the airplane with the bright scene outside. When you've got all day to take the perfect photo, you get the best quality with a bag of prime (non-zoom) lenses, moving the tripod a few feet every 10 minutes to... See less 
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