The iPhone camera is excellent out of the box — but out of the box is not where its best photos live. Buried in Settings are options that control sharpness, color science, file quality, and composition guides. Here are the hidden iPhone camera settings that instantly improve your photos, and exactly where to find them.

1. Turn on the grid and level for better composition

The rule of thirds is the fastest composition upgrade there is, and the grid makes it effortless:

Go to Settings → Camera .

Turn on Grid and Level .

The grid overlays a 3×3 guide on your viewfinder; the level shows a small crosshair that turns yellow when your phone is perfectly straight — no more crooked horizons.

2.…