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<p>[QUOTE=&quot;imrich, post: 1349219, member: 22331&quot;]<b>Theta Explation.</b></p><p><br /></p><p><br /></p><p><br /></p><p><b>Thanks for the query. In the sciences, etc., the angle of action relative to a target is generally noted by the </b><b>eighth letter of the greek alphabet, theta. </b></p><p><b><br /></b></p><p><b>Simply stated, if the camera angle, relative to the target, can be adjusted and fixed, many distracted influences can be attenuated, or desirably features amplified. A preferable mount will have ~45 degree (0 to -45 degree) vertical rotation, with ~90 degree (-45 to +45 degree) horizontal rotation. </b></p><p><b><br /></b></p><p><b>This angle of adjustability, in conjunction with the other degrees of movement, will often allow that seen by the human eye when rotating an object relative to a light source (e.g. surface uniformity/irregularities, cartwheel effect, luster, relative profiles).</b></p><p><b><br /></b></p><p><b>My observation has been that most photos are taken at right angles to a target, which generally fails to convey depth information and other features.</b></p><p><b></b>[/QUOTE]</p><p><br /></p>

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