- 1). Clean your negatives thoroughly before you start scraping. Dust and particles can get in the way of your art work and cause mistakes. Use lens tissue or a lint-free cloth to carefully and gently clean your negative.
- 2). Place the negative with the emulsion side up on a light table or light box. The emulsion side is less shiny than the other side. Make sure your light table or light box has a glass surface. If it is plastic, you will damage it by cutting into it.
- 3). Use the hobby knife to start working where you want to alter the image. Remember that the dark parts of the negative will be the light parts of the print. So when you start scraping into the emulsion, remember not to go too deep or you will lose all detail. Take special care with people's faces.
- 4). Work delicately with your hobby knife under the magnifier. Take your time. Once you make a scrape, it will be hard to fix it if it is not what you wanted the image to look like.
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