Film developing trays that are used for processing photographic roll or sheet film can also be used for processing photographic prints. The trays should be made of material that isn't affected by, or won't cause contamination of, photographic solutions. Most developing trays are made of stainless steel or plastic. Developing trays are available in various sizes and can range in price from just a few dollars for a plastic model to a few hundred for a stainless steel tray. Remember that the larger the tray you are using, the more chemicals you will also be using. You should have three trays available in your darkroom, one for developer one for fixer and one for washing or holding the prints in until they can be washed.
