Easy when you want it. Total control when you need it.

Auto Tune samples the live histogram twice per second and balances ISO first, then shutter, inside the limits you choose. Start it, let the scene settle into range, and either keep the tuned exposure or restore the exact settings you had before.

• Protect and Auto Tune take control of exposure intentionally
• During recording, Auto Tune only lowers exposure to protect highlights
• Keep commits the result; Restore returns ISO, shutter, EV, and prior modes

Manual shutter follows the real limits of the selected iPhone camera, including long values when the hardware supports them. ISO uses that device’s actual range. Large, precise controls keep both adjustments understandable in the dark.

• Long shutter values let each frame collect more of the gesture
• Lower ISO can preserve cleaner blacks and saturated light color
• Save proven combinations as profiles for the next location

When manual ISO and shutter leave no sensor compensation available, LightPaint routes EV through a deliberately restrained digital adjustment. That makes the rendered blend brighter or darker while preserving the long-shutter choice that defines the motion.

• Useful when ambient conditions change around a fixed shutter
• A narrower range helps avoid banding and extreme processing
• Digital EV cannot restore clipped highlights or detail the sensor never captured

Choose blend timing from a tenth of a second through ten minutes, then shape the character of the trail with full trails, comet trails, glow, and trail editing. The effect remains visible while you work.

• Timed blends from 0.1 to 600 seconds
• Full and comet-style trail treatments
• Fast photo capture without abandoning the session