Photonegative
Did you still remember the photonegative?
In proper name called as negative film. In photography, a
negative is a photographic image that reproduces the bright portions of the
photographed subject as dark and the dark parts as light areas. Negatives are
usually formed on a transparent material, such as plastic or glass. Exposure of
sensitized paper through the negative, done either by placing the negative and
paper in close contact or by projecting the negative image onto the paper
reverses these tones and produces a positive photographic print.
Black-and-white negatives consist of grains of metallic
silver chemically reduced during the development process from silver salts
struck by light during exposure
In the case of color negatives, the colors are also
reversed into their respective complementary colors. Typical color negatives
have an overall dull orange tint due to an automatic color-masking feature that
ultimately results in improved color reproduction.
This is the one photonegative , shows a good category image |
Negatives are normally used to make positive prints on
photographic paper by projecting the negative onto the paper with a
photographic enlarger or making a contact print. The paper is also darkened in
proportion to its exposure to light, so a second reversal results which
restores light and dark to their correct order. Negatives were once commonly
made on a thin sheet of glass rather than a plastic film, and some of the
earliest negatives were made on paper.
The negative image shows , this the different between colour tone for the understanding |
How to find a picture is good ?
A positive image
is a normal image. A negative image is a total inversion, in which light areas
appear dark . A negative color image is additionally color-reversed, with red
areas appearing cyan, greens appearing magenta and blues appearing yellow.
The negative film nowadays no more because of people very
determined with upload picture on social networking site except some event time
only. In graphic or editing wise people very frequently, make using an image by
using this kind of negative film as effect their gadgets. However, negative film
background becomes a lost history to now generation people. However, there is unique
thing on this negative film and must be memorable moment for parents. This
classic effect creates unpredictable pictures, with equally unpredictable
vintage effects. .
references : http://videohive.net/item/film-negative-slide/2116176
http://www.youtube.com/watch?v=um2b7R2F7yA
www.corel.com -1st image
www. tutsplus .com- 2nd image