Prolonging Slide Life with Screenout-IR
Prolonging Slide Life without Screenout-IR
With images made on photo film, it doesn't matter which side faces the lamp.
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Prolonging Slide Life with Screenout-IR
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| The TIPA creates a focal point outside the body (and requisite heat) of a fixture, as well as providing an ultra-quiet fan to disperse heat. On heavily saturated images however, especially those with large areas of solid black, heat can still build up and eventually warp the plastic or crack the toner. Use of a heat shield such as Screenout-IR from Hollywood International can significantly increase the life span of an image, whether printed on acetate or on film. Make sure the coated side of Screenout-IR faces the lamp. If you forget which side is coated, simply place both probes of a continuity tester on one surface of the Screenout-IR. The coated surface produces continuity. | ||
| The heavily saturated image to the right was
projected continually for eight straight hours from an Altman 575w HMI Fresnel.
With the use of Screenout-IR, the film showed no warping when removed. |
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Prolonging Slide Life without Screenout-IR
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| Images projected with the TIPA are inserted upside down and backwards. If you are using standard transparencies (from laser or ink jet printer) you will find it helpful to print the image backwards on the transparency. This way the side of the transparency with the ink or toner on it faces away from the lamp (and heat) of your light source. For example, let's say you're using a TIPA to project your logo on the walls of the company cafeteria. You've laid it out nicely in a program such as Illustrator or Freehand, sized for the distance and lens choice. Once you're done, select the entire image and "flip horizontally" so that when the image is inserted backwards, the toner/ink side now faces away from the lamp. Now print it. You do not have to flip it vertically because turning the image upside down will not affect which side of the transparency faces the lamp. With images made on photo film, it doesn't matter which side faces the lamp. |
To make this logo last longer... | |
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| Print it this way! | ||
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