3D Shooting with a Single Digital Camera with the Use of 3D Lenses of the Stereoscopic System “Stereo-70”

Alexander Melkumov

The Russian stereoscopic system is one of the oldest in the world. This system was used for production of 3D movies for more than 40 years. The important principle of this system is the use of a single camera, single lens and a single film. — The interaxial distance between the left and right lenses should not exceed 30 mm for live 3D shooting if we want to shoot the people and animals without effect of miniaturization and should have a sufficient distance of comfortably reproduced space between the front and background without large parallaxes. — For this reason in the majority of 3D stereoscopic rigs professional digital cameras must be placed not in parallel but at an angle of 90 degrees with the use of a translucent mirror. — The 3D lenses of the Stereo-70 cameras were designed specifically for 3D shooting of the live nature. The small size of optical blocks allows for interaxial distance of 26.4 mm. It is enough to have two 35 mm side by side standard frames on one 65-mm film negative. — The optical axis of each lens can be adjusted to a film when we want to change the distance of the point zero parallax. Remote control of the 3D lens allows cameramen to work without special computing tables. — Recently we have found the way to use the same optical system in digital format with the use of camera “Phantom-65” with a sensor similar to the 65-mm cinema frame. — The choice of single system allows solving the problem of synchronization of the left and right images automatically.

Published
2010-07
Content type
Original Research
Keywords
Stereoscopic system, 3D lens, 65-mm film, interaxial distance (basis of the shooting), “Stereo-70”, “Phantom-65”, 3D camera
DOI
10.5594/M001400
ISBN
978-1-61482-950-8