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3 D Films


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There were basically 2 methods used in the 50's for 3D Films. ANAGLYPHIC which uses red and green glasses ( it came from Outer Space, Creature from the Black Lagoon) and Polarised where the 2 images were viewed through diametrically opposed polaroid lenses ( Kiss Me Kate, House of Wax) Both Systems had major problems with them and didn't work too well. ANAGLYPHIC 3D Fils were because of the red/green lenses in the spectacles were basically Pinky Green and the 3D effect came and went depending on the length of shot in the film.

POLARISED 3D needed 2 projectors to show the image so again the effect could be variable and there were also problems with synchronising the 2 machines, it was also a problem getting enough light out of the projector so frequently the images seen on screen were somewhat dim. It was also a problem showing the film without frequent breaks as usually cinema projection boxes only had 2 machines on which to project the films and if you were using both of them at the same time then there would be an interval every time a reel needed changing. ( Modern projectors dont have this problem as they are either Digital ( ie a Hard Drive) or have spools called "Cake Stands" which take the whole film so no break is needed to rethread the projector

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There were basically 2 methods used in the 50's for 3D Films. ANAGLYPHIC which uses red and green glasses ( it came from Outer Space, Creature from the Black Lagoon) and Polarised where the 2 images were viewed through diametrically opposed polaroid lenses ( Kiss Me Kate, House of Wax) Both Systems had major problems with them and didn't work too well. ANAGLYPHIC 3D Fils were because of the red/green lenses in the spectacles were basically Pinky Green and the 3D effect came and went depending on the length of shot in the film.

POLARISED 3D needed 2 projectors to show the image so again the effect could be variable and there were also problems with synchronising the 2 machines, it was also a problem getting enough light out of the projector so frequently the images seen on screen were somewhat dim. It was also a problem showing the film without frequent breaks as usually cinema projection boxes only had 2 machines on which to project the films and if you were using both of them at the same time then there would be an interval every time a reel needed changing. ( Modern projectors dont have this problem as they are either Digital ( ie a Hard Drive) or have spools called "Cake Stands" which take the whole film so no break is needed to rethread the projector

Welcome to Sheffield History walkure.

For me the main problem with red / green analglyph is the sacrifice of colour information to get the 3D effect. The 3D is OK but the picture can never be in its natural colours due to the coloured filters used both in the viewing glasses and in the production of the actual 3D film image which is projected.

The main problem with polarised light methods was (and they may have overcome this now using new screen materials) that although the projected light was polarised, scattered and reflected light loses its polarisation and so reduces the 3D effect. The problem was how to make a screen which reflected the light without loss of polarisation. This was a much more difficult problem for 3D TV as the screen is a light emmiter and would have to emit 2 different polarisations of light, which is why 3D TV took much longer to develop and appears to be a slightly different system with alternating polarised images to each eye.

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