A fine grain master positive is a photographic term. It is also known as a fine grain master or fine grain and is a high-definition black-and-white intermediate positive image generated from a negative for the purpose of creating additional duplicate negatives. This intermediate element is exposed and chemically processed to a photographic gamma that will permit duplicate negatives as close to the original as is possible by a photochemical process.
While a fine grain master appears over-exposed and dark, it contains all of the information in the original negative, compressed into the toe and straight-line portion of the H&D curve via exposure and chemical processing. The image is uncompressed when the duplicate negative is made from the element and the tonal range expanded up into the top straight-line and shoulder portion of the H&D curve.
Famous quotes containing the words fine, grain, master and/or positive:
“The weather and my mood have little connection. I have my foggy and my fine days within me; my prosperity or misfortune has little to do with the matter.”
—Blaise Pascal (1623–1662)
“For every grain of wit there is a grain of folly.”
—Ralph Waldo Emerson (1803–1882)
“Love and joy come to you,
And to your wassail too,”
—Unknown. God Bless the Master of This House (l. 5–6)
“Property is the fruit of labor—property is desirable—is a positive good in the world.”
—Abraham Lincoln (1809–1865)