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: Removes any unexposed silver halide, making the image permanent and light-safe. Time : 2 minutes for RC paper; 5–10 minutes for FB paper.

: An acidic solution that immediately halts the development process to prevent the paper from continuing to darken. Time : 30 seconds with gentle agitation. | FullMacCrack

It seems you're asking about the process for developing photographic paper, often used for creating prints or paper negatives in a darkroom. The "FullMacCrack" term likely refers to a specialized technique or a specific (possibly informal) name for a high-contrast or DIY developer recipe. Standard Development Process : Removes any unexposed silver halide, making the

: Converts the light-exposed silver halide crystals into visible metallic silver. : Removes any unexposed silver halide