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Course 321 · Lesson 03

The Science of Style: Technical Mastery as Creative Control

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Exposure Metering — Shutter Speed, F-Number, and ISO Combined

321.3 Lesson 03 of 08 3 quiz questions 1 assignment

Exposure metering is the camera's tool for measuring light. A correctly exposed photograph is a combination of three variables: shutter speed, f-number, and ISO — all working together. This lesson maps the complete exposure system: how the meter reads the light falling on or reflected by the subject, and why there are always multiple correct exposure combinations for any scene…

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