ACETATE
[Film Technology]
Refer
acetate film stock and Acetate
sheet filter. Film base by acetate. Below
freezing point acetate film stock dries out
& becomes progressively brittle and subject to static which on the screen, looks like flashes
of lightning streaking across the picture area. Loading a camera without breaking the
film becomes difficult. Below -400 F the speed of the
film begins to drop and between -500
F or -600 F a whole extra stop
should be allowed. At these temperatures estar
or mylar base film is preferable to acetate.
Acetate sheeting is generally preferable, but much more expensive. A stiffer
material, it can be used similarly to gelatin.
Although, liable to buckle, it can be provide a clear image beyond the
window. Ethanoate or Acetate, a salt or ester of ethanoic acid (acetic acid). The salts are formed by reacting ethanoic acid with a
base, such as a metal hydroxide; the esters by reacting the acid with an alcohol. The
ester cellulose ethanoate (cellulose acetate), referred to commercially simply as acetate, is used in fabrics, fibres, and films.
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