Which processing error causes films to turn black with poor image contrast?

• A. Oxidized or depleted developer solution
• B. Weak fixer solution
• C. Cold or non-circulating wash water
• D. Above normal developer solution temperature

Answer: (D)

When the developer solution is hotter than it should be, the chemical reactions proceed more rapidly and uniformly across the film. That over-activation deposits more metallic silver in both exposed and unexposed areas, so the entire image becomes very dense. The result is a film that looks almost black and lacks the tonal separation between light and dark areas, which means poor image contrast.

Other processing issues produce different problems: oxidized or depleted developer makes images underdeveloped and paler (not overly dark); a weak fixer or inadequate washing mainly affects clearing and potential staining, not the overall dark, low-contrast darkness described; cold or non-circulating wash water can cause staining or artifact problems, but not the uniform darkening from overactive development.