That is the revealed photo? The activity of the processing of photos can become an activity very complicated if you want to get excellent results being done by oneself without having the knowledge or the experience necessary, since they must apply certain processes and materials when it comes to the processing and positivism of photographic reels which is the process of developing of photos? When taking a photo, the camera in the film through the light some physical transformations already generates that film or photographic roll has a chemical composition of salts that are sensitive to light, these transformations have resulted in the formation of a still very weak image and little stable front lightSo what is sought with the revealed photo is that the effect generated by the light through the camera in the roll to expand or increase and it is stable to light which is accomplished through a chemical manipulation. In the process of chemical handling for the revealed photo must be the dilution of the rolls or photographic reels in certain chemical developer, fixer, among others besides this process must be in the amounts given by the manufacturers of chemical products; After this the film a certain time must be diluted to achieve an optimal revealed photo, time is usually established by manufacturers in the same chemical products; After the aspect or element of the time, it is necessary to take into account the temperature which allows us to if it maintains a suitable temperature – generally keep an average temperature of 20 degrees Celsius – the unfolded than optimum, to maintain an ideal temperature is necessary to have a photographic thermometer that will be a very important tool in the process of processing photos; Finally should be carried out the stirring process since the molecules of different chemicals are losing their characteristics in contact with film of the roll, so to avoid that the process you have some type of variation should be a correct agitation already that the revealed photo can get to lengthen or shorten this would affect the quality of photographic processing, therefore the agitation must carry a rate determined for each moment and advance the developing of photos. After this process of developing towards reaching the goal of processing photos you must proceed to the positivism of the negative. So the negative containing values of inverted tones, so that the glittering parties have a dark tone and shaded or darkened parts are little notable, so with the positivism are reset normal tones of the original image, which is done either through a method of contact or enlargement. Through contact what is done is place the negative onto photo paper, exposing them to the light and so invest the tones in the role.