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A - Digital Processing of Film Images

from Part V - Appendices

Published online by Cambridge University Press:  11 October 2018

Michael A. Covington
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Summary

You can, of course, process film images with the same software that you use for DSLR images. Noise takes the form of random grain only; there is no fixed-pattern noise. Stacking multiple images builds contrast and reduces grain. First you have to get the film images (slides or negatives) into digital form. There are many methods. The best is a film scanner with a resolution of at least 2400 dpi (about 100 pixels/mm).
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Digital SLR Astrophotography , pp. 333 - 335
Publisher: Cambridge University Press
Print publication year: 2018

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