Full Manual, Combining the Triangle

Lessons 2 through 4 each isolated one control while the other two floated automatically. That’s a fine way to learn a control’s personality, but it’s not how a working shoot goes. In Manual mode, nothing floats. Move one dial and the other two owe you a correction or the exposure drifts off zero. This lesson is the first time you’re asked to hold all three in your head simultaneously and hit a specific look on purpose, which is the actual job from here forward.

Before touching the camera, write down a target spec in one line: an aperture (say, wide open for background blur), a shutter speed (say, fast enough to freeze a specific motion), and an ISO ceiling (your number from Lesson 4, not to be exceeded). This planning step matters, shooting without a spec in Manual mode turns into aimless dial-spinning.

Switch to M. Set aperture first to match your spec’s depth-of-field goal. Set shutter speed next to match your spec’s motion goal. Now check the meter. It’s almost certainly off zero, because you set two of three controls for their creative effect, not for exposure. Bring it back to 0 using ISO, since that’s the control you have left, and stop the moment ISO would need to exceed your Lesson 4 ceiling to get there.

If ISO alone can’t close the gap without exceeding your ceiling, that’s useful information, not a failure: it means the spec you wrote wasn’t achievable in this light, and you need to add light, move to brighter light, or revise one of the other two controls (usually aperture, since it has the least effect on the character you’re protecting). Adjust, re-check the meter, and only record once it’s within a third of a stop of 0.

Record 15 seconds. On playback, verify against your own written spec: does the background actually look the way the aperture choice should have made it look, does the motion actually look the way the shutter choice should have made it look, did ISO stay under ceiling.