User manual POLAROID 4X5 SHEET FILM

[. . . ] A Guide to Using Polaroid 4 x 5 Sheet Films For people who work in a variety of ways. Tips, techniques and inside information designed to help you get consistently good results with Polaroid 4 x 5 sheet films. 4 x 5 et he S s m l Fi What's inside w Processing tips relating to 4x5 films and proper use of 545 family of film holders w Polaroid 4x5 films: The big picture w The inside story abut 4x5 instant film w The 3 critical keys to quality images w Storing, handling, loading and processing Polaroid films w If it's hotter or colder than 75oF (24oC). . . w Type 55 P/N film: Positive approaches to good negative results (peeling techniques; sodium sulfite solutions) w Making sure your prints and images last a long time w Picture problems and problem prevention w Toll-free help and technical assistance Polaroid 4x5 films: The big picture Please keep this booklet within reach of your Polaroid Model 545 film holder Polaroid 4x5 sheet films for use with the Model 545, 545i, and 545 Pro film holders Color Type 59, Polacolor ER, (ISO 80/20o) Type 64, Polacolor Pro Tungsten (ISO 64/19o) Type 79, Polacolor Pro 100 (ISO 100/21o) Polacolor Pro 100 (International only) (ISO 100/21o) The information in this booklet is designed to help experienced and occasional users of Polaroid 4x5 sheet films get good pictures. . . avoid some common picture-taking errors. . . perform a few simple, routine, preventive maintenance checks. . . This booklet covers in quick reference form much of the material contained in the instructions originally packed with the Polaroid Model 545 film holder. [. . . ] By minimizing temperature variations when processing pictures you will get more consistent results. At temperatures higher or lower than 75oF (24oC), it may be necessary to adjust processing time and/or exposure settings to achieve optimum results. Always refer to the Film Data Sheets located on the Web at www. polaroid. com for the latest information about adjusting processing times according to temperature. Normal development Und erd eve lope d Ov erd e ev lop ed 7 If it's very hot or cold, process your film later When using Polaroid 4x5 instant sheet films in hot or cold locations, remember that you can remove the exposed film for processing later, under more optimal conditions. Heres how: 1 w At low temperatures, keep the film warm, under your coat or in a heated car or room. Place developing film in a warm place, such as a heated car or under your coat, being careful not to bend or crush it. Pull hard so the print and mask separate completely from the negative. (Dont touch the damp face of the negative. ) Flex the perforation near the metal clip, then tear off the metal clip along the perforation. Pulling too rapidly can cause white specks in images and/or angle pull. Pulling too slowly, or stopping or hesitating, can cause streaks on pictures (See page 11. ) Immerse negatives in an 18% sodium sulfite solution immediately. Use film hangers, such as Kodak #6 or 4A, to keep negatives apart in tanks, or clear negatives individually in trays. 9 Sodium sulfite solutions The negatives produced with Type 55 Positive/Negative black & white film must be cleared of the residual developer layer, if they are to be saved and printed. It is recommended that this be done immediatelywithin 3 minutesto prevent staining. Negatives should be immersed and agitated in an 18% sodium sulfite solution for approximately 1 minute, being careful not to let them come in contact with each other. Occasionally, it may be necessary to gently rub off the developer layer with your fingers or a damp sponge. Keep in mind that, at first, the negative emulsion is soft and can be damaged easily. After clearing, negatives should be washed in running water for at least 5 minutes. (Negatives may remain in the sodium sulfite solution for up to 72 hours, if immediate washing is inconvenient. ) If you are in a hurry to print a negative, wash the negative for about 30 seconds before use, then wash thoroughly again later. To avoid drying marks after washing, dip negatives in a wetting agent, such as Kodak Photo-Flo (diluted at least 1:600), before hanging up to air dry in a dust-free area. Use film hangers or wooden clothespins to hold the negatives while drying. All solutions and wash water should be nearly the same temperature, ideally 65-75oF (18-24oC). When dry, negatives can be retouched and printed using conventional techniques. Don't use fixers and hardeners If you are shooting on location or do not have immediate access to sodium sulfite Developed negatives may be safely stored in water (at about 70oF, 21o C) for a few hours. While they are in water, handle them carefully and do not attempt to rub off the developer layer. Treat the negatives in sodium sulfite as soon as possible. More about sodium sulfite Sodium sulfite powder is readily available from professional photographic dealers and chemical supply houses. Mix with water in the following proportions: Warm water 2 Liters (70 fluid oz. ) Sodium sulfite (anhydrous/desiccated) 440 grams (16 oz. [. . . ] See the Film Data Sheets on the Web at www. polaroid. com for latest time/temperature processing information. Pull film straight out of film holder. Remove and place film holder on flat surface for film pulling, if possible. Always pull at steady, moderate speed. When loading film After taking each picture 1 4 1 4 Handle film envelopes by edges to avoid pressure on pod. 2 Test to be sure film has engaged properly in holder. Gently run finger and thumb over area marked "Do Not Press Here". [. . . ]