صنع صورة مكبرة بالألوان .. كيف تعالج الصور .. كتاب التصوير الضوئي

Making a Color Enlarged Image .. How to Process Images .. Photography Book

How to Process Images
Making a Color Enlarged Image

Success in drawing a color image assumes mastery of two techniques, namely processing on the one hand and obtaining a correct balance of colors and values ​​on the other hand. Before starting to work in the field of color images, you must have complete knowledge of drawing black and white images. There are several models of colored paper and many methods. But as is the case with colored films, you must use the processing materials specific to each method. By not taking this into account, we risk getting images with bad and unstable colors.

Most methods have been invented for developing by machine, which explains the processing temperature that exceeds the normal temperature of 30 to 40 ° C. For this reason, it is not recommended to work in tanks because the daylight processing cylinder is more practical. This cylinder adopts a preheating technique that provides the appropriate temperature by prior immersion in lukewarm water.

The variety of different methods and means to achieve good images forces us to consider the processing method drawn below as general instructions on how to work.

- Precautions

The chemicals used in color photography are dangerous and often toxic: the instructions for preparing and using the dips must be followed exactly. Wear rubber gloves when handling the compounds and especially do not forget to store them out of the reach of children and uninformed people.

- Adapting the black and white laboratory to colors:

To process color films in a laboratory equipped for black and white, we will need the tools illustrated on page 196. On the other hand, make sure that your safety lamp is equipped with a special filter and that the magnifying lens is designed to suit colors.

- Color magnification:

Carefully dust off the negatives and their holder. Hold the negatives by their edges with cotton gloves.

Under a light that has no chemical effect, place the image in its frame within the margin organizer as explained on page 190.

Transfer the filter values ​​onto the color head (or insert the independent filters into the filter drawer) ...

Check the image frame. Turn off all lights and place the sensitive paper in the margin regulator.

Expose the paper to the light and make up if necessary. This is only possible by the deletion method.

Place the paper in the curing cylinder, sensitive end inward and close the cylinder.

In natural light measure out the quantities of curing solutions and prepare them as needed for the pre-immersion at the required temperature.

Start the curing in the cylinder. Pour in the pre-immersion water (for 1 minute) and empty it for use again.

Quickly pour the developer into the cylinder. Count the development time when the cylinder starts to rotate.

Continuously move the cylinder back and forth. Empty the basin 15 seconds before the end of the development time.

When the development is complete, pour out the bleach/fixing solution and immediately start rotating the basin.

Use the pre-immersion water for the necessary 4-6 washes.

When the curing is complete, remove the image from the cylinder, remove the excess liquid and air dry.

While the image is drying, clean the cylinder and other containers for the next treatment.

When the image is dry, examine it in daylight. Make sure that the color density and balance are satisfactory.