Practice question · Numerical answer
A print has a base exposure of 12 seconds. A sky is to be burned in by one stop. How many extra seconds of exposure does the sky receive?
Hints
- One stop means doubling the total exposure that area gets.
- The extra time equals the base time.
Show the answer
12
Why
12 extra seconds, giving the sky 24 seconds in total. This is the arithmetic beginners reverse: a one-stop burn is not a total of 12 seconds but an addition of 12, and reading it the wrong way round means burning a sky by nothing at all.
Practise Dodging, Burning and the Expressive Print
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