Sheet film hangers are made of stainless steel or plastic that resist corrosion in photographic solutions

Figure 10-3. Sheet film hangers.

Figure 10-4. Roll film processing tank and reel.

(fig. 10-3). They are constructed of perforated metal or plastic and channeled to receive and suspend film in solution. This allows the solution to circulate freely over the film surface. Sheet film hangers are used in tank developing and their use is described later in the this chapter.

ROLL FILM TANKS AND REELS

Hand processing of roll film is usually done on reels in roll film tanks. The center-feed reel and tanks used most commonly in the Navy are made of stainless steel. The film is wound onto a spiral reel. The reel is then placed into a tank for processing (fig. 10-4).

TRAYS

Trays used for processing photographic film (roll or sheet) are the same as those used for processing photographic prints. They may be made of any material that is not affected by, or cause contamination of, photographic solutions. Most trays used today are made of stainless steel or plastic.