الطباعة والتحميض قبل ولادة الصورة .. مجلة فن التصوير اللبنانية _ ع٥

Printing and developing before the image is born

Printing and developing the image are among the foundations of photographic techniques, and upon them (printing and developing) the output of the image and its artistic and technical birth depend at the same time. Printing and acidification are among the most difficult technical stages of photography.

The picture is taken and then we drag the film into the black room to develop it (refer to the third issue of The Art of Photography). The output of the photograph lies in the processes of printing and developing. First, we have to make sure that the water is completely removed from the film after drying it. Secondly, we prepare a solution of exposure and fixation in the containers designated for it, taking into account the cleanliness of these containers in advance. Third: Ensure that no external light leaks into the room during the printing process, because this It affects sensitive paper. Fourth: Ensure the correctness of the lighting strength inside the room, i.e. the red or yellow safety light, so that the light strength is not more than what is required. For more confirmation, a sheet of paper is taken and placed in front of the safety light at a distance of 50 cm for a period of ten minutes, then shown and fixed in case it does not appear. Black smear on the paper the light is appropriate. Fifth: Preparing sensitive paper and the types of paper used in printing are numerous. They are close in industry and the result and its measurements are different and must be commensurate with the color of the negative. Among these sensitive papers are Ford, Kodak and Forte papers. The imaging process contributes to a great extent in adjusting the color of the negative. . And the negative types are

1 - dark black, low contrast, and No. 2 - medium negative, with clear contrast, and No. 3 - revealing high contrast negative, and No. 3 - paper is used. But how is the process of enlarging the image? before placing the negative into the store
We wipe the bottles and the lens with a soft brush or a piece of leather to clean the lenses, without touching the bottles, then the surface of the glossy film is wiped of dust as well. Adjust the vision) Note that most of the dedicated hand-held magnification devices are adjusted

Vision automatically and after determining the size of the required image, we block the light of the magnifier by means of the red filter located at the bottom of the lens. And we put the sensitive paper on the required area, then we remove the red veil so that the magnifier rays fall on the paper within a few seconds (from 5 to 20 seconds) according to the contrast of the negative. contrast becomes It is clear on all parts of the picture, then you wash it with water for a short period and put it in the fixing container for a period of not less than ten minutes, after that you wash the pictures in running water for a period of 15 minutes to remove chemical residues from them, then they are dried, and here we recommend using Elfo Seed plastic sheets to dry them quickly, as it is sufficient 3 minutes for the photo to become completely dry before people's eyes see it outside the dark room.

Prepared by photographer Tariq Ibrahim