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Topic: Final Destination 5 3D Technical Issues
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Jim Cassedy
Phenomenal Film Handler
![](http://www.film-tech.com/ubbmembers/4115a.jpg)
Posts: 1661
From: San Francisco, CA
Registered: Dec 2006
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posted 11-05-2015 12:03 PM
I ran that print in 35mm Tech-3D, and don't recall any issues. Was this a show you personally ran or one you went to see? If you went and saw it at a theater, perhaps they threaded up the film wrong, or the leader was spliced on wrong, so that the "left/right" images were out-of-polarization phase with the lens.
It would be almost impossible to install the Technicolor lens upside down, but those lenses had very fine/critical filter adjustments that could be thrown off by a hard bump, or, worse yet, by dropping the lens.I had this happen at one theater and it took two trained techs almost two hours to get the lens back into alignment.
The Tech 3D systems I worked with also seemed to suffer more bad effects such as ghosting or fringing as the result of cheap or dirty porthole glass than other 3D systems. In two theaters, removing the glass entirely made a big improvement in the picture quality. (At the price of introducing some projector noise into the auditorium. But these were huge, old theaters,so it wasn't too big of a problem as the noise got 'absorbed' by the space.)
And, as others have pointed out- - Tech 3D used circular polarization, and using the wrong type of glasses made for viewing a poor image.
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