Alley in Pisa, Italy

by Lars Kotthoff

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21
votes
1answer
877 views

What is “reciprocity failure”?

What is "reciprocity failure" when used in the context of film?
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votes
2answers
620 views

Does reciprocity failure (Schwarzschild effect) exist in digital photography?

In analog photography (film) there was an effect called "Schwartschild effect", or Reciprocity failure when making long exposures (usually more than few seconds). Some film brands created ...