Patent ID: 7948515

Claim:
An apparatus for stereoscopic photography, comprising: a support; a first camera having a first lens, the first camera being mounted to the support; a curved structural member rotatably affixed to the support, the curved structural member being rotatable between a first position and a second position that causes the curved structural member to rotate relative to a lengthwise axis of the curved structural member; and a second camera having a second lens, the second camera being slidably mounted to the curved structural member so that it is free to move along the curved structural member so as to vary an interaxial spacing between the first and second cameras so as to increase or decrease an amount of stereoscopic depth of a stereoscopic photograph captured by said first and second cameras; wherein a convergence distance between an intersection of the lens axes of the first and second cameras is varied by adjustment of the curved structural member between the first and second positions so as to control an off-screen position of a subject captured in the stereoscopic photograph without changing a horizontal axis distance between the first camera and the second camera measured along the lengthwise axis of the curved structural member; and wherein the convergence distance and the interaxial spacing can be varied independently of each other such that changing the convergence distance by adjustment of the curved structural member between the first and second positions does not vary the interaxial spacing and varying the interaxial spacing by moving the second camera along the curved structural member does not vary the convergence distance.