Multiple choice general knowledge

In photography, filters are used to

  1. keep dirt and grime away from the film surface

  2. modify light.

  3. keep used photons from collecting inside the camera.

  4. clean the air entering the camera through the PC terminal.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Photographic filters are placed in front of the lens to modify the light entering the camera - they can change colors, reduce reflections, darken skies, or create special effects. They don't physically clean anything or deal with used photons.

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