Chapter 34: Problem 49
A camera lens has a focal length of 180.0 mm and an aperture diameter of 16.36 mm. (a) What is the \(f\)-number of the lens? (b) If the correct exposure of a certain scene is \(1\over 30\)s at \(f/\)11, what is the correct exposure at \(f/\)2.8?
Short Answer
Step by step solution
Key Concepts
These are the key concepts you need to understand to accurately answer the question.