Long Exposure Photography on iPhone: Tips, Settings, and Apps

There’s something satisfying about a long exposure photo. Waterfalls turn silky smooth. Car headlights become ribbons of light. Ocean waves dissolve into mist. It’s a look that used to require a DSLR, a tripod, and ND filters.

Your iPhone can do it too. Not perfectly, not in every situation, but well enough to be genuinely useful. Here’s how.

What Long Exposure Actually Does

A normal photo captures a single instant. Maybe 1/100th of a second. Everything frozen in time.

A long exposure keeps the shutter open for seconds or even minutes. Anything that moves during that time gets blurred and blended together. Anything that stays still remains sharp.

That’s why waterfalls look smooth in long exposure shots. The water moves, so it blurs. The rocks don’t move, so they stay crisp. The contrast between motion and stillness is what makes these photos work.

The same principle applies to light trails (cars move, road stays still), crowd removal (people walk through, buildings stay put), and star trails (stars rotate, landscape stays fixed).

The Built-in Method: Live Photo Long Exposure

Apple added a long exposure effect to Live Photos starting in iOS 11. It’s the easiest way to try this on iPhone, and you don’t need any extra apps.

How to Do It

1. Open the Camera app and make sure Live Photos is enabled (the concentric circles icon at the top should be yellow, not crossed out)
2. Take a photo of something with motion. A waterfall, a busy street, flowing water, anything that moves.
3. Open the photo in your Photos library
4. Swipe up on the photo (or tap the Live label at the top left)
5. Select Long Exposure from the effects

Your iPhone takes the 3 seconds of video data captured by Live Photo and blends it together into a single image. Moving elements get the smooth, blurred look. Static elements stay sharp.

When It Works Well

• Waterfalls and streams (the classic subject)
• Waves crashing on rocks
• Car lights at night from an overpass
• Sparklers and light painting

The Limitations

The built-in long exposure effect has some real constraints:

It’s always 3 seconds. That’s how long a Live Photo records. You can’t extend it. For some subjects, like star trails or very slow-moving clouds, 3 seconds isn’t enough.

No real-time preview. You take the shot, then apply the effect after. You can’t see what the long exposure will look like while you’re composing.

Limited control. You can’t adjust the exposure time, how much blur you want, or which parts of the frame should blur. It’s all or nothing.

It struggles with handheld shots. Even small hand movements during those 3 seconds can make the entire image soft, not just the moving parts. Apple’s stabilization helps, but it’s not magic.

For casual use and good lighting conditions, the Live Photo method is surprisingly effective. But if you want more control, you’ll need a dedicated app.

When You Need a Dedicated Long Exposure App

A third-party long exposure app gives you what the built-in method can’t:

• Adjustable exposure time. Shoot for 5 seconds, 15 seconds, 2 minutes. However long the shot needs.
• Real-time preview. Watch the image build up as it captures. You’ll know immediately if the composition works or if you need to adjust.
• Exposure control. Adjust brightness so your shot doesn’t blow out during longer captures.
• Frame stacking. Instead of a single long capture, some apps take many short exposures and blend them. This handles noise better and is more forgiving of small movements.

Lento is one I built for this. It uses frame stacking in real time, so you can watch the long exposure develop on screen as you shoot. Full disclosure: I’m the developer, so factor that into your evaluation. There are other good options like Slow Shutter Cam and Spectre.

The right tool depends on what you’re shooting and how much control you want.

Best Subjects for Long Exposure

Not every scene benefits from long exposure. Here are the subjects that work best, in order of how easy they are to shoot on iPhone.

Waterfalls and Streams

The easiest and most reliable subject. Moving water against static rocks is the perfect combination. Even the built-in Live Photo method handles this well. Visit on an overcast day if you can. Direct sunlight makes the water too bright in longer exposures.

Traffic Light Trails

Find an overpass or a spot overlooking a busy road at night. The headlights and taillights become continuous streaks of red and white. This needs a longer exposure (10+ seconds), so a dedicated app works better than Live Photos here.

Ocean Waves

Shooting waves with a 10-30 second exposure turns choppy water into a smooth, foggy surface. The results can be dramatic, especially at sunrise or sunset. You’ll need a tripod or very stable surface for this one.

Crowds and Busy Streets

A long exposure in a crowded area blurs the moving people into ghostly streaks while buildings and structures stay sharp. Works best in slightly lower light where the camera naturally wants a longer exposure. Fun for tourist spots where you want the landmark without the crowd.

Stars and Night Sky

This is the hardest category on iPhone. Star trails need exposures measured in minutes, and the phone’s small sensor struggles with noise at night. It’s possible but don’t expect DSLR-level results. Find a spot far from city lights and use a tripod. A 2-3 minute stacked exposure can capture some star movement.

Tips for Stable Shots Without a Tripod

Long exposure and camera shake are natural enemies. A tripod is ideal, but you won’t always have one. Here’s how to improvise:

Lean your phone against something solid. A wall, a railing, a rock. Any stable surface is better than your hands. Prop it at the right angle using a small object like a wallet or a rolled-up cloth.

Use the timer. Set a 3 or 10 second self-timer so you’re not touching the phone when the capture starts. The act of tapping the shutter button introduces shake.

Use earbuds as a remote shutter. Connected EarPods or AirPods let you trigger the shutter with the volume button. Your hands stay off the phone entirely.

Brace your elbows. If you’re holding the phone, tuck your elbows tight against your body. Lean against a wall. Exhale and hold still. It’s not perfect, but it’s noticeably better than shooting with outstretched arms.

Shoot in good light. This sounds counterintuitive for long exposure, but brighter conditions mean the app can use shorter individual frames in the stack. Each frame is sharper, so small movements matter less.

Editing Long Exposure Photos

A good long exposure often needs a few tweaks to really pop. Here’s what I typically adjust:

Contrast. Long exposures tend to look a bit flat because the blending averages out the tonal range. Bump contrast up slightly to restore depth.

Clarity / Structure. This enhances mid-tone contrast, which brings out texture in the static parts of your image. A little goes a long way. Too much makes things look crunchy and over-processed.

Highlights down, shadows up. If the bright areas (like white water or light trails) are too intense, pull highlights down. If the dark areas lost detail, lift the shadows. This gives you a more balanced exposure.

White balance. Night shots and sunset shots sometimes shift color during long captures. Adjust temperature and tint until the colors look natural.

Crop and straighten. When you’re focused on holding the phone still, composition sometimes suffers. Don’t be afraid to crop tighter or fix a slightly tilted horizon.

You can do all of this in the built-in Photos editor on iPhone. No extra apps needed. Lightroom Mobile gives more control if you want it, but the default editor handles the basics well.

Start Simple

If you’ve never tried long exposure on iPhone, start with the Live Photo method and a waterfall or stream. It’s the most forgiving subject with the easiest technique. Get a feel for how motion blur works in your compositions.

Once you’re hooked (and you probably will be), try a dedicated app for longer exposures and more creative control. Traffic light trails at night are a great second project.

The iPhone isn’t going to replace a full camera setup for serious long exposure work. But for the photos most people want to take, it’s more than enough. And you always have it with you, which is the best feature any camera can have.