How to Photograph Fireworks on iPhone This Diwali and Bonfire Night: Night Cam's New Fireworks Mode, Step by Step

Diwali is on Sunday 8 November 2026, and in the UK Bonfire Night lands on the Thursday before it. Between the two, more fireworks go up in one week than in the rest of the year, and more disappointing photos get taken. The pattern is always the same: a burst that filled the sky in real life becomes a smeared white blob on a black background, or a video where every rocket turns into a flashing rectangle. This guide explains why that happens, and walks through the new Fireworks mode in Night Cam: Stars & Aurora, which arrived in version 1.0.1 this month, along with the few things the app cannot fix for you.

Why fireworks defeat the default Camera app

A firework is two things the standard camera handles badly at once. It is very bright against a very dark sky, so the automatic exposure either clips the burst to pure white or buries the sky in noise trying to brighten it. And it is a moving light source: the trails you see with your eyes are your retina holding on to the light for a fraction of a second, which a photo with a short exposure cannot reproduce. A fast shutter freezes a handful of dots. A long, bright exposure turns the burst into a white splodge.

What you actually want is a long exposure that keeps the sky dark: enough time for the sparks to draw their lines, with the brightness held down so the lines stay coloured instead of burning out. That is a specific combination that the default Camera's Night mode does not aim for, because Night mode is built to brighten dark scenes, which is the opposite of the job.

What Night Cam's Fireworks mode does

Night Cam is a night-sky camera with presets for the kinds of scene the standard app struggles with: stacked long exposures for stars, a moon preset that exposes for moonlight, aurora stills and live aurora video, star trails, and a city preset for skylines. Version 1.0.1 added a Fireworks mode for both photo and video. The App Store release notes describe it precisely: photos gather three seconds of light trails, and video runs at a smooth 30 frames per second with the exposure kept dark so bursts do not blow out.

Three seconds is the key number. It is long enough for a rocket to climb, burst and let its sparks fall through most of their arc, so each shot captures a complete shape rather than a slice of one, and it is short enough that you can take a shot per burst during a display. The dark exposure on video is the other half: instead of letting the phone's automatic exposure chase each flash, the mode holds the brightness down so the colour in the burst survives.

The rest of the app's habits apply too. Every preset tells you how to hold the phone (tripod, wall or hand-held), there is a three-second countdown and a steadiness check before long shots, a red night-vision mode so you can see the screen without wrecking your night vision, and exposure is metered from the actual sky in front of you, so a fireworks display over a lit street and one over a dark field both come out right.

Step by step: photographing a display

• Get there early and pick a spot with the launch point in view. Fireworks are launched from a fixed place; if you can see where the first rocket goes up, you can keep the camera pointed at the right patch of sky for the whole show. Upwind is better than downwind, because smoke drifts and after ten minutes a downwind crowd is photographing a glowing cloud.
• Put something in the frame that is not sky. A silhouette of the crowd, a temple outline, the top of a building or a tree line gives the bursts a sense of scale. Pure black sky with a burst in the middle is the photo everyone already has.
• Steady the phone. A three-second exposure hand-held will blur the trails into fat lines. A small tripod is ideal; failing that, brace the phone against a wall, a railing or the top of a fence post. The steadiness check will tell you if you are moving too much before the shot starts.
• Open Night Cam, choose Fireworks, photo. Frame the patch of sky above the launch point with your foreground at the bottom. Switch on the red night-vision mode if the screen is dazzling you.
• Time the shot so the burst happens inside the three seconds. Watch for the launch trail, tap, and let the shell burst while the exposure is gathering. If the app runs its countdown before the shot, tap earlier, as the rocket leaves the ground. It takes two or three attempts to get the timing; after that it is rhythm.
• Shoot more than you think you need. Big bursts overlap, finales pile up, and some shots will be smoke. Twenty shots over a ten-minute display is a reasonable number; you will keep four.
• For video, use the Fireworks video preset and leave it running. Thirty frames a second with the exposure held dark means the finale, the part that normally becomes a white flicker, stays coloured. Record the whole display rather than stopping and starting; it is easier to trim later than to miss the best burst.

Diwali versus a public display

The two nights are different photographic problems. A Bonfire Night or municipal Diwali display is a single launch point, a predictable rhythm and a fixed distance, which is what the steps above assume. Diwali at home or in a neighbourhood is dozens of small fireworks going off from the street, the terrace and the courtyard, close to you, at random, with sparklers and diyas in the foreground. For that, the long exposure is doing a different job: it turns a sparkler being waved into a drawn shape, and lets the diyas and string lights register as warm points rather than disappearing.

Two adjustments. Stand further back than feels natural, because a fountain firework at four metres will overwhelm any exposure, and because it is safer. And use the foreground deliberately: a row of diyas along a wall with fireworks going up behind them is the Diwali photo, and the three-second gather is exactly long enough to capture both. If you have children with sparklers, have them write a word or draw a circle during the exposure; the trail stays on the photo.

What the app cannot do

Honesty about the limits saves disappointment on the night. Night Cam cannot steady a phone you are holding in a cold hand at a crowded display; the tripod or the wall is not optional for the three-second photo. It cannot photograph through a window at night, because the reflection of the room will be brighter than the sky. It cannot make a smoky display look clear, which is why the upwind advice above is in bold in your head now. And it cannot do anything about the person in front of you holding their own phone above their head; that is why you get there early.

It also does not replace the built-in Camera for the daylight parts of the evening, the food, the rangoli, the family on the terrace before the dark. Use the standard app for those and switch to Night Cam when the first rocket goes up.

Price, privacy and requirements

Night Cam is free to download, with the first three captures free. After that, Night Cam Pro is a $4.99 one-time purchase for everything forever, or a Night Pass at $0.99 unlocks everything for 48 hours and does not renew, which is a sensible option if you only want it for the fireworks week. The forecast features (aurora chance, cloud cover, moon phase) are always free. There are no subscriptions, no ads, no account, no analytics and no tracking; photos go only to your Photos library, and the App Store privacy label is Data Not Collected. It is iPhone-only, needs iOS 18 or later, and is a 1.8 MB download, so it is worth installing on the evening even over a crowded network.

If you are travelling for Diwali and the skies are dark where you are going, the same app's star and aurora presets, covered in the northern lights camera settings and Orionid meteor shower guides, use the same tripod and the same patience. Fireworks are simply the one night sky subject that comes to you.