A film base is a transparent substrate which acts as a support medium for the photosensitive emulsion that lies atop it. Despite the numerous layers and coatings associated with the emulsion layer, the base generally accounts for the vast majority of the thickness of any given film stock. Historically there have been three major types of film base in use: nitrocellulose (cellulose nitrate), cellulose acetate, (cellulose triacetate, cellulose diacetate, cellulose acetate propionate, and cellulose acetate butyrate), and polyester (polyethylene terephthalate (PET) (Kodak trade-name: ESTAR)).
Read more about Film Base: Nitrate, Acetate, Polyester, Identifying A Film Base
Famous quotes containing the words film and/or base:
“Film as dream, film as music. No art passes our conscience in the way film does, and goes directly to our feelings, deep down into the dark rooms of our souls.”
—Ingmar Bergman (b. 1918)
“They must to keep their certainty accuse
All that are different of a base intent;
Pull down established honour; hawk for news
Whatever their loose phantasy invent
And murmur it with bated breath....”
—William Butler Yeats (1865–1939)