طباعة ورقة الاختبار ٢-a .. كتاب طبع وتحميض الصور الفوتوغرافية

Fixative solution on the clip to be completely dipped in the fixative for 30 seconds before lighting the room. Tenth: Turn on the lights in the room and evaluate the findings. The clip must remain in the fixing plate for 5-10 minutes in order to complete fixation.

Dip the clip in

Fixer and leave it in for 5-10 minutes

Or for 2 minutes if you are using RC paper

If you take the first method of making the clip, you will now see 6 differently exposed areas. The lightest one was exposed for only 10 seconds, the next one for 20 seconds, and so on, between which the darkest area was exposed for a full 60 seconds. Select the part that has been properly and well exposed and has the best level of light contrast. The time it took to expose that part is the most appropriate time

Exposure of the entire test paper.

This clip, which was made in the first way, shows exposure gradations from 60 seconds, which is the dark area at the top to the light area at the bottom, which was exposed for only 10 seconds.
If you adopt the second method of making the clip, you will also get areas of different density. Each wedge-shaped area has a number indicating the corresponding endorsement time. Select the area with the best contrast. Read the number written on it, which indicates the amount of exposure needed in seconds for the entire test paper. If two adjacent areas are similar in density, choose the darker one, as it often has the best exposure for the entire test paper.

The exposure clip made by the second method shows exposure numbers directly printed on the appropriate intensity.

b- Print the test paper:

Remember that from now on, after you set the appropriate time for exposure to the print, you still have to repeat the previous steps, replacing the test clip with a full test paper, and for the negative clip with several clips according to the test paper's capacity. It is important to maintain the same endorsement time (60) or 90 seconds in order to get good results. It is difficult to judge the results that appear in front of you under the illumination of the safety light. Results should be judged under normal room lighting. Adhere to the following steps in order to get good prints every time: 1- Turn off the room lamp and take out a 20 x 25 cm print sheet from its envelope, then reseal the envelope tightly. 2- Lift the glass of the contact stamp and place the printing paper on top of the cardboard sheet in such a way that its sensitive side is facing up

Put the printing paper in between

Carton plate and plate

The glass is in contact.. 3- Lay the negatives evenly over the printing paper, making sure that

Her shining face upwards.

The printing paper accommodates about 6 scraps, each scrap contains 6 frames, for a total of 36 negatives of 35 mm. or 12 negatives of 2 x 2 inch film cut into three frames per cut, for a total of 1; 12 frame film clips.

Arrange the scraps of negatives on top of the printing paper.

4- Light the magnifying light source or (the lamp) to expose the printing paper by the amount of time that you reached with the aforementioned test clip.

View the paper for the same amount of time as before.
e- Turn off the light source after the specified period has elapsed, open the stamp, then take out the negatives and put them in their place, then dip the printing paper into the appearance. Remember to slide it into the endorsement plate in one motion in order to even out the endorsement over its entire area. Gently shake the endorsement paper with tweezers inside the endorsement. Which

Dip the stamp paper into the viewer.

6- Take the test paper out of the developer and lift it in the air with the forceps over the developer plate in order to get rid of the excess developer solution drops, then dip it in the stop solution for 30 seconds. 7- Using the second tweezers, remove the paper from the suspension solution, then dip it into the solution

Installer in one go.

8- After a period of 30 seconds has elapsed after fixing, turn on the room lamp and examine the test paper while it is in the fixative solution without removing it from it, for at least 5 minutes (the RC paper needs only two minutes). It does not matter during this period if the room lights

off or not.

- Put the print after endorsement in the installer.

- After installing the paper, put it in a bowl of clean water to wash it. 10- After washing, dry the test paper.
Post-test edition

How to use the test paper:

Test paper has many benefits, for example, it forms a permanent and accurate record of your photographic work. This is very useful, especially when the number of your negativity increases steadily. The number of the test papers is the same as the numbers of the negative envelopes, then put them in the “Classor” according to a specific order. Thus, when you want to return to one of the negatives with the intention of reprinting or enlarging it, you simply go back to the Classor first, so you know its serial number from it, which will help you know its exact location among the negatives envelopes, saving you money yourself the trouble of searching long . Another benefit of test paper is no less important than the previous one. By examining the results of the negatives printed on them, you will accurately determine the negatives that deserve to be printed, and you will save a lot of money, paper, and wasted effort. Just from it and print it.

Test prints are placed in a specific order within a special clasp for easy reference to negatives when necessary.
Use a small magnifying glass to examine the images on the test paper to check the features of the people and to know the quality of the negative and its absence from scratches. You can also, with the help of the test paper, conduct preliminary experiments on the parts of the tires to find out the areas that are not desirable and that can be removed. When you examine the test papers, you will notice that the frames are not at the same level of intensity, and this is due to the difference in the exposure periods when shooting the film. The reason for the presence of too light a frame in the test paper is due to overexposing it slightly when photographing, which means that it will need more exposure when printing in order to obtain clear details. On the contrary, the excessively dark frame is due to a slightly underexposure when photographing, which means that it will need less exposure time during printing compared to the rest of the negatives. 1