"J. C. O'Connell" <[EMAIL PROTECTED]> asserted: >You don't have a clue, 3D photography is not >an optical "trick" , it is the same way humans >are able to sense depth. Each eye sees a slightly >different point of view due to the spacing between >them. 3D photography is same exact principle, two >lenses, two slightly different images, and the >special viewing is just so that each of the >viewer's eyes only sees the image recorded for >that eye. A 3D photo is NOT a two dimensional >image, its two 2D dimensional images that RECREATE >a 3D scene, something a single 2D image cant do. >JCO
You're wrong. A Stereograph (two images taken from slightly different viewpoints and viewed with a special viewer) is, in fact, a trick. A two-dimensional piece of paper is placed in the special viewer and the user's brain is tricked into perceiving physical depth that does not exist (the stereograph, after all, is typically a thin piece of paper with nothing behind it). Holographic images (like those on your credit cards) provide another way to trick the brain into seeing depth that is not physical. Back to the original topic,I claim (you are of course free to disagree) that selective focus provides another method to trick the brain into perceiving depth. I have a few pictures that I've taken with my FA* 85mm F1.4 lens where this effect really pops out (at least, to me). --Mark
