Which condition commonly causes film fog and reduces image contrast?

Which condition commonly causes film fog and reduces image contrast?

• A. Light leaks
• B. Overdevelopment
• C. Underexposure
• D. Proper processing

Answer: (A)

Fogging happens when stray light exposes the film, adding density across the entire image and washing out details. Light leaks are a common source of this unwanted exposure, often arising from gaps or openings that let ambient light reach the film during handling or processing. That extra exposure reduces the differences between light and dark areas, so image contrast suffers. Overdevelopment increases overall density but doesn’t produce the uniform fogging pattern associated with stray light. Underexposure makes a lighter image, not a fogged one. Proper processing avoids these issues, so the presence of fog and loss of contrast points to stray light entering the film path, i.e., light leaks.

Fogging happens when stray light exposes the film, adding density across the entire image and washing out details. Light leaks are a common source of this unwanted exposure, often arising from gaps or openings that let ambient light reach the film during handling or processing. That extra exposure reduces the differences between light and dark areas, so image contrast suffers. Overdevelopment increases overall density but doesn’t produce the uniform fogging pattern associated with stray light. Underexposure makes a lighter image, not a fogged one. Proper processing avoids these issues, so the presence of fog and loss of contrast points to stray light entering the film path, i.e., light leaks.