An Experimental Trinoscope for Improved Video-to-Film Recording
Henry A. Barrett, Robert Collette, Kenneth G. Lisk, Jerry Sager, Richard J. Sypula · SMPTE Journal · 1984
The trinoscope or tri-optical recorder is a highly successful device for transcribing video images to film. This technique is used throughout the world to make high-quality recordings, primarily onto Eastman color negative II film 7247 (16mm) or 5247 (35mm). A new trinoscope has been constructed that takes advantage of new CRT geometry-correction technology and uses a new method of raster line compensation. A unique feature is its ability to expose relatively insensitive Eastman color internegative II film 7272.