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A big difference between a wide-angles lens and a telephoto lens is the compression of the landscape; the wider the angle the more distance will appear between the foreground and background elements; however, a telephoto lens will make the same elements appear closer to each other.
Nature photography is a wide range of photography taken outdoors and devoted to displaying natural elements such as landscapes, wildlife, plants, and close-ups of natural scenes and textures. Nature photography tends to put a stronger emphasis on the aesthetic value of the photo than other photography genres, such as photojournalism and ...
A real image is the collection of focus points actually made by converging/diverging rays, while a virtual image is the collection of focus points made by extensions of diverging or converging rays. In other words, a real image is an image which is located in the plane of convergence for the light rays that originate from a given object.
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Focal length (f) refers to the elevation difference between the film and the lens. [2] [4] H is the elevation difference between the lens and the sea level, which is the average level of the water surface. [2] [4] h is the elevation difference between the terrain surface and the sea level. [2] [4] S is the scale of aerial photographs.
A river is a natural watercourse, [7] usually freshwater, flowing toward an ocean, a lake, a sea or another river. A few rivers simply flow into the ground and dry up completely without reaching another body of water. Rocky stream in the U.S. state of Hawaii. The water in a river is usually in a channel, made up of a stream bed between banks.
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Topological relationships between geometric entities traditionally include adjacency (what adjoins what), containment (what encloses what), and proximity (how close something is to something else). reconstitute a sight in synthesized images of the ground, determine a trajectory of overflight of the ground, calculate surfaces or volumes,