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RADD 2501 Processing Key Terms & Definitions

RADD 2501 Processing Key Terms & Definitions -...

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Processing Modules 5-6 Question Answer Whta are the 4 steps in the processing cycle? a. development b. fixing c. washing d. drying Development is the 1st step in the processing cycle and converts the latent (invisible) image into a _________ image. manifest (visible) During the development cycle, silver hadlide grains are reduced to _________ _________. metallic silver T/F - Development provides optical density and contrast? TRUE If unexposed crystals are reduced during development cycle, ________ is produced. fog Chemical fog _____________density and ___________ contrast. increases density and decreases contrast. As developer becomes depleted of electrons, it becomes ________________. oxidized. T/F - Developing solution consists of solvent water, sequestering agents, developing agents, buffering agents, restrainer, preservative, starter solution and hardeners. TRUE Sequestering agents (chelates) do what? They soften water. The two main developing agents are ___________ & __________. Phenidone and hydroquinone. T/F - Phenidone produces black (hi contrast) image and acts slowly. It also is more selective. FALSE. Hydroquinone produces black (hi contrast) image and acts slowly w/more selectivity. What does Phenidone produce? Phenidone produces shades of gray quickly w/low selectivity. Which developing agent controls toe of characteristic curve and which controls shoulder? Phenidone controls toe and Hydroquinone controls shoulder. Working developer is made-up of 2 things... developer starter and developer replenisher. Does starter solution have any acidic restrainer? Yes. Starter solution INCREASES pH to normal value and provides potassium bromide. T/F?
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