Photonegative

 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