الأجهزة والأدوات .. كتاب فن التحميض والطبع والتكبير

Chapter one

Hardware and tools

First: the smallest darkroom (for developing films only)

This room did not cost you much! It can develop all kinds of films, whether black, white or colored.

This room consists of:

First - Devices:

1- A changing bag or bag.

2- Tank film developing tray.

his reel reel).

with

Liquid thermometer.

4- Scissors.

e - clamps

- Soda water opener

Timer or clock.

Second: Chemicals: see the chapter on chemicals

Third: the location

The best place is the bathroom (toilet) or the kitchen, because there is running water. You will need a table to put the previous things on it. We will not have to do this

room to turn off the light 1

Let us now discuss these requirements one by one.
<-1. Changing bag: This is a bag that is impermeable to light, and has a zipper to enter the acid, film, etc. On both sides, there is a violin that ends with a rubber band (elastic) so that your hands can enter through them. The film is placed inside the development tray in the dark inside the closed exchange bag, while the light is on around you. And you can make. This bag is made of black faux leather with a part that covers the zipper when it is closed to prevent light from entering. As for the sleeves, they are made of two layers of black velvet

switch bag

2- Developing Tank: There are many types of these cans, the best of which is made of stainless steel, although types made of hard plastic are also good. The can has two covers. The first allows the entry and exit of solutions and does not allow the entry of light. The second is soft plastic placed on top The first cover is to prevent the entry and exit of liquids while stirring the solutions.Inside the box, there is a spiral reel made of either steel or transparent plastic, and there is a plastic or metal stick to move the reel through the first cover, and there may be a tool with the box to facilitate insertion and winding of the film on the reel.There is Types of these boxes allow wrapping the film on the reel inside the box without the need for a dark room or a changing bag, and in this case, the end of the film should be left protruding when rewinding it inside its reel, and these types are (Daylight Developing Tank) not inside the box from
Only 35 mm films are compatible with it. It should be noted that the width of the reel is suitable for the size of the film, 35 mm or 120 mm. There are types in which more than one film can be developed. There are spiral reels whose width can be adjusted to accept more film sizes. The methods of installing the film on the reel differ from one developing tray to another, so read the attached instructions well and try the installation first in daylight using an old film.
Thermometer liquid thermometer: to measure the temperature of solutions. The mercury thermometer is good, but it is difficult to read its signs, as well as the ease of its exposure to breakage. There is a Dial Thermometer, which is easier to read and bears well. There are digital thermometers such as digital watches, and this is expensive, but it can be read in complete darkness, and some of them give audio signals every specific time period, for example every minute.

Digital thermometer

METER

4- Scissors: It is preferable that they be straight and not pointed. It is used to cut and trim the edges of the film to install the film on the reel.

Steel clips: for hanging the film to dry after its acidification, as well as for holding the edges of the film during washing.

Until it is easy to use regular clothespins. 6- Soda water opener: to open the 35 mm roll of film inside the exchange bag. A coin can be used to open the tip of the reel.

Timer Timer: for timing the acidification and washing times. Y can be used
A stopwatch suitable for printing and development

Any hour has a second hand. We will return to the mention of the timers when explaining the dark room of the magnification

8- Chemicals: You need a show solution, a stopping solution, and a fixing solution.

See the Chemicals chapter.

9- Table: You can use the kitchen table (put a plastic cover or newspaper on it) and wash it well after use. Or you can put a board of wood on the bathroom sink or bathtub. With these modest capabilities, you can develop any film. A novice amateur or seasoned professional photographer may want to do so, and there are many reasons for that. The most important of which is that the laboratory will not give you the special acidification you want except in rare cases, and this appears especially in the acidification of black and white films. With a simple change in chemicals, temperature, exposure time or the method of moving the film, you can control to a large extent the shape in which the film will appear, whether by increasing or decreasing the contrast, increasing or decreasing the speed of the film, or controlling the size of the grains, etc., which We will deal with it in the next chapter. This is in addition to the fact that it is currently difficult to find a laboratory that develops and prints black and white films (it seems that they have color fever). everyone