![]() In the latter case, you can specify the Grain size by using the dedicated slider and selecting a value ranging from 1 to 10. Negative size from 24×36 to large format, or manually create a custom format size. To deal with this variable, the Film grain palette contains a drop-down menu called Size, where you can choose a pre-determined film Thus a print of a photo made from a 24×36 film negative shows a lot more grain. Indeed, if two negatives, one 24×36 mm in size and the other a map film of 10×12 cm, had an identical grain, and the two were printed on 30×40 cm paper, the enlargement size would more than 10 times for the 24×36 mm and only 3 times for the 10×12 cm. If you want to simulate a film as closely as possible, you will need to take into account the enlargement size to apply to a negative when processing the film for paper print production. You can use the Luminance slider in the Noise removal palette to completely smooth out the noise from an image and then substitute a more aesthetically-pleasing silver halide grain. You can also choose to eliminate the grain by selecting No grain. When you click on Current film rendering, the grain of the film currently selected will be used. Size: Lets you pick the size of the grain depending on the film size: 24×36, medium format, large format, or custom.Intensity: You can change how noticeable the grain is by changing the value (the default value is 100, and 0 nullifies the effect).Film: The drop-down list lets you choose the grain associated with a particular silver halide film.The Film grain palette lets you apply and fine-tune silver halide grain by using the following tools: Grain has a direct link to sensitivity: a highly-sensitive (i.e., high ISO) film is one that has large clusters of salts that are more likely to be modified when the film is exposed to light. When exposed to light, these clusters generate random variations in light intensity: the larger the clusters, the stronger the variations, making the grain more noticeable when looking at the emulsion. ![]() GrainĪs part of the photographic emulsion process, metallic silver salts (or other colorants) are grouped in clusters of different sizes and shapes. Unlike the Presets panel in which you click on a thumbnail to apply all of the characteristics of a particular film rendering, the Customize tab lets you apply the film rendering and grain characteristics separately. The list of film renderings is split in several categories you can open by clicking on them. By default, the scroll list is set on No film rendering. The Rendering palette lets you choose the type of film you want to simulate. If you have previously applied a preset, the switch will be set to the corresponding mode: if you apply a black & white preset and you move to the Customize tab, the switch will be on B&W.You can switch back anytime to Color (and back and forth).If you set the switch on B&W, the image will be converted in a neutral, basic black and white.By default, the switch is set on Color, especially if you start with a RAW or a RGB (JPEG, TIFF) file.The Color/B&W switch allows you to switch between color and black and white image processing modes, with some common tools and a few specific tools. It also complements the use of presets and different image renderings offered by the program, which you can modify to your liking here. The Customize tab in DxO FilmPack contains all of the image correction and processing tools, both in color and black and white. ![]()
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