A camera sensor gathers light over time in a way your eyes cannot, so a photo of the aurora is often far more vivid than what you saw standing there — especially at moderate KP. That is a feature, not cheating, but it does mean the settings matter more than the gear. Once you know a display is likely (see our KP guide and Bz guide), here is how to actually capture it.

Before you go: gear that actually matters

A tripod. Aurora photography leans on exposures of one second or longer — anything handheld will blur. This matters more than any other single piece of gear.
Spare batteries, kept warm. Cold drains batteries fast, on phones and cameras alike. Keep spares in an inside pocket, not your camera bag.
A remote shutter or self-timer. Pressing the shutter button by hand can shake a multi-second exposure. A 2-second timer does the same job with no extra gear.

Shooting on an iPhone

Recent iPhones handle aurora better than most people expect, mounted on a tripod:

Mount the phone on a tripod or a stable surface — Night mode exposures run several seconds.
Tap the sky to focus, then hold your finger down and drag to lock focus and exposure (AE/AF Lock) so the camera does not keep hunting in the dark.
If Night mode appears, tap its icon and drag the exposure slider to the maximum available time rather than letting it choose automatically.
Turn flash off. Shoot in RAW (ProRAW on Pro models) if you plan to edit afterward.
Keep the phone warm between shots — battery percentage can fall fast in freezing conditions.

Shooting on a mirrorless or DSLR

Start here and adjust from what you see on the back screen:

Lens: the widest, fastest lens you own — a wide-angle around 14-24mm at f/1.4-f/2.8 lets in more sky and more light.
Focus: switch to manual and focus on a bright star or distant light using live view zoomed in, then leave it alone. Autofocus almost always fails in the dark.
ISO: start around 1600-3200 and adjust based on the histogram, not just how the screen looks.
Shutter speed: 2-8 seconds for a fast-moving, structured aurora (keeps the pillars and curtains sharp); up to 10-15 seconds for a faint, slow glow. Faster shutter speeds preserve detail; slower ones trade detail for brightness.
White balance: around 3000-4000K is a reasonable starting point, or shoot RAW and adjust it afterward without any quality loss.

Composition

A bright green band with nothing else in frame gets old fast. Look for foreground interest — a coastline, mountains, a lone tree, water calm enough to reflect the sky — and check moonrise and light pollution for the night, since a bright moon washes out fainter displays but can also usefully light up a foreground.

Mistakes that ruin most first attempts

Leaving focus on auto — nearly every blurry aurora photo traces back to this.
Shutter speed too slow for a fast display, which flattens the aurora's structure into a featureless green haze.
Heading out without checking conditions first — cloud cover, KP, and Bz all matter more than camera skill. No setting fixes a cloudy sky.
Lens fogging in cold, humid air — a lens warmer or even a wrapped hand towel helps.
Not dressing warm enough to stay out through a slow buildup, then leaving right before it peaks.