A typical stereoscope offers each eye with a lens that makes the image seen through it look bigger and more distant and generally also shifts its apparent horizontal position, so that for a person with normal binocular depth perception the edges of the two images seemingly fuse into one stereo window. A simple stereoscope is restricted in the size of the image that may be used.
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A typical stereoscope offers each eye with a lens that makes the image seen through it look bigger and more distant and generally also shifts its apparent horizontal position, so that for a person with normal binocular depth perception the edges of the two images seemingly fuse into one stereo window. A simple stereoscope is restricted in the size of the image that may be used.