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Scratch Test: Difference between revisions
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(Created page with "A scratch test is performed to ensure that a projector, camera, printer, platter, or other transport system is not scratching film. This test should be performed regularly, an...") |
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A scratch test is performed to ensure that a projector, camera, printer, platter, or other transport system is not scratching film. This test should be performed regularly, and especially if equipment has been unused for long periods of time, or any mechanical adjustments have been made to your projectors. | A scratch test is performed to ensure that a projector, camera, printer, platter, or other transport system is not scratching film. This test should be performed regularly, and especially if equipment has been unused for long periods of time, or any mechanical adjustments have been made to your projectors. | ||
==Materials== | |||
The two best films for scratch tests are unexposed print stock and clear leader. Unexposed print stock is more useful for evaluating scratches on the bench, and clear leader is more useful for evaluating scratches on screen. An unused trailer, lightstruck, or black leader will also work in a pinch provided it is in perfect condition. | The two best films for scratch tests are unexposed print stock and clear leader. Unexposed print stock is more useful for evaluating scratches on the bench, and clear leader is more useful for evaluating scratches on screen. An unused trailer, lightstruck, or black leader will also work in a pinch provided it is in perfect condition. | ||
==Methods== | |||
General: It is helpful to do a deep and thorough clean of your projector before a scratch test. | General: It is helpful to do a deep and thorough clean of your projector before a scratch test. | ||