PREMO FILM PACK TANK
Those who use the Premo Film Pack need never give a thought to development, for if they will use the Premo Film Pack Tank, they can absolutely know that every pack they expose is certain to be perfectly developed, provided they follow the simple directions for use of the tank. This means that the merest beginner, without any need of skill or help, can get as good results in development as the most expert photographer.
For the tank is simplicity itself. It requires no experience, no lengthy manipulation in a close dark-room. And we recommend the tank system to the most careful workers as being infinitely simpler than the older method and producing results superior to those which can be obtained by the most painstaking tray development.
The Premo Film Pack Tank consists of two pieces—a metal receiver or cage for the films, and a tank with cover for the developing fluid. The entire outfit is self-contained and can be easily carried in a corner of a suitcase.
The cage is divided into twelve compartments—in the 5 × 7 size, six—each accommodating one film. As the film is taken from the pack it is held between the thumb and fingers, slightly bent from top to bottom, and slipped into its respective compartment. When all the compartments are filled, the cage is placed in tank, which has been previously filled with developer, the top replaced and the films left to develop for a certain specified time. No further attention is necessary except to turn the tank end for end, several times during the progress of development.
At the expiration of the full time, open the tank, take out the cage, remove films, place them in a tray of water for a moment, then transfer to the fixing bath. Development is completed. Rinse out cage and tank and set them aside.
The operation of removing films from the pack and loading the cage is done, of course, in a darkened room by the light of a ruby lamp. During the day any darkened closet will suffice, at night any dark room in which the shades are drawn will answer. To load the films in cage will take only two or three minutes, and as soon as the top is placed on tank it may be brought out into any light and left until development is completed. And night is really an ideal time to develop films, as they can be fixed and washed in a short time and will dry over night, being all ready to print from in the morning.
If it is desired to develop less than a dozen films, one merely removes from his pack as many films as have been exposed, places them in the cage, and proceeds in the same manner as described above.
The cage of the No. 1 Tank is slightly different from that shown in the illustration, but the method of loading is the same and, of course, the results are just as dependable.