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:
“It’s a fine land, the west land, for hearts as tired as mine,
Apple orchards blossom there, and the air’s like wine.”
—John Masefield (1878–1967)
“If you can look into the seeds of time,
And say which grain will grow and which will not,
Speak then to me.”
—William Shakespeare (1564–1616)
“A long time you have been making the trip
From Havre to Hartford, Master Soleil,
Bringing the lights of Norway and all that.”
—Wallace Stevens (1879–1955)
“Success goes thus invariably with a certain plus or positive power: an ounce of power must balance an ounce of weight.”
—Ralph Waldo Emerson (1803–1882)