![]() ![]() ![]() 3.5 min x 1.25 = 4.40 min) CHROMOGENIC B&W FILMS When exposing these films in the range of ASA 100-400, use the standard development times given in the time/temper- ature chart. When Exposure Change is: ISO Speed Increase Development Time: 2 stops under 4x normal 1.5x (i.e. In other words, pushing an ISO 100 film two stops to ISO 400 offers no benefit since an ISO 400 film is already available. ![]() When pushing is required, star t with the highest speed film available. As a rule, pushing should be done only when necessary (i.e., when higher film speed is needed) because negative quality does suffer somewhat. PUSH PROCESSING All color negative films suitable for the C-41 process can be underexposed and processed for higher than normal film speeds by extending the development time (push processing). If you choose to operate under these conditions, our best advice would be to process a small piece of test film, and on the basis of these results, decide whether or not to commit valuable pictures to the chem- istry. Otherwise, partially used working solutions left untouched for a week or more might have changed so significantly that you would suf- fer a dramatic decline in results. This procedure is somewhat risky unless you process some film every day or so to monitor chemistr y performance. If you take full responsibility for quality of results, it is possible to process more film over a much longer timespan.7200 Huron River Drive Rev 4/07 Dexter, MI 48130-1099 FORM 024 0123 MORE CHEMISTR Y CAP ACITY (cont’d) MSDS (Material Safety Data Sheets) for this kit are available by written request. Do not allow children to use this kit without adult supervision. Wear a lab coat or other protective clothing. Use safety glasses and rubber gloves while working with chemicals.This will prevent confusion and processing out of order. A few drops of Blix, soap or other contaminate can destroy the developers. Use water well above the temperature you want to use to develop your film.W ARNING This kit contains chemicals that may be harmful if misused. These instructions will show you how to process the film and how to reuse the chemicals for extended life. It will also process Chromogenic B&W films. K-2 POWDER C-41 PROCESSING COLOR NEGATIVE CHEMISTRY Catalog # 10123 INSTRUCTIONS FOR 1 LITER POWDER KITS You may use this kit to process any Kodacolor/Vericolor™ or C-41 compatible film. ![]()
0 Comments
Leave a Reply. |