Fireworks Photography: Why Photos Look Like Squiggles (October 2026 Guide)

Every photographer remembers the first time they tried to capture fireworks and ended up with disappointing results. Instead of those dramatic, colorful light trails you see in professional shots, your images showed thin, wavy, faint lines that looked more like a child’s scribbles than anything worthy of sharing. You are not alone in this frustration. Fireworks photography troubleshooting is one of the most common challenges photographers face, and the faint squiggles problem has a specific set of causes that are entirely fixable.

The good news is that those squiggly, broken lines are not a sign of a broken camera or a lack of talent. They are the result of specific technical errors that almost every beginner makes. Once you understand what is happening inside your camera during a long exposure shot, the fixes become obvious.

In this guide, I will break down exactly why your fireworks photos look like faint squiggles and walk you through the precise camera settings and techniques that will transform your results. Whether you are shooting with a DSLR, a mirrorless camera, or even a smartphone, the principles remain the same. By the end, you will know how to capture those bold, smooth light trails that make fireworks photography so rewarding.

Why Do My Fireworks Photos Look Like Faint Squiggles?

Fireworks photos look like faint squiggles because of one of two problems: camera shake during a long exposure, or a shutter speed that is too short to fully capture the expanding firework burst. In some cases, hot pixels from a heating sensor can also produce squiggly artifacts that mimic camera movement.

Here is what is actually happening. A firework burst unfolds over 2 to 5 seconds. When you photograph it, your camera’s sensor stays open and records every point of light as it moves through the sky. If the shutter stays open long enough and the camera stays perfectly still, those moving points of light become smooth, continuous streaks across your image.

But if your camera moves even slightly during that exposure, every point of light gets recorded as a wobbly, zigzagging line. Instead of a smooth arc, you get a squiggle. The faint appearance usually means your shutter speed was too fast, closing before the firework had time to paint a full trail across the sensor.

I have seen this issue hundreds of times in photography forums and from readers of this site. One user on Photography Life, John D., described it perfectly: he turned out some OK shots but also fought squiggly lines with a lot of them and wondered if camera shake was the culprit. In most cases, it absolutely was. Let us look at each root cause in detail.

Root Cause 1: Camera Shake During Long Exposures

Camera shake is the number one reason your fireworks photos have squiggly lines. When you hold a camera by hand or use an unstable support, even the smallest movement gets magnified over the course of a multi-second exposure. What feels like a tiny tremor to your hands becomes a visible wobble in the final image.

Think about it this way. If your shutter is open for 4 seconds and your hand shifts by just 1 millimeter during that time, every single light point in the frame shifts right along with it. A firework trail that should be a clean diagonal line now has a visible kink or wave in it. The longer your exposure, the more pronounced this effect becomes.

The most common sources of camera shake during fireworks photography include:

– Holding the camera by hand instead of using a tripod

– Pressing the shutter button with your finger

– Wind vibrating a lightweight or flimsy tripod

– The internal mirror slapping up inside a DSLR body (mirror slap)

– Image stabilization systems that actually introduce movement when the camera is locked down on a tripod

How to Eliminate Camera Shake

The fix for camera shake involves removing every possible source of movement. First and most obviously, you need a tripod. It does not have to be expensive. Reddit photographers consistently report that even budget tripods produce dramatically better fireworks shots than handholding. The key is stability, not brand name.

Second, use a remote shutter release or your camera’s built-in 2-second timer. This prevents the physical act of pressing the shutter button from jiggling the camera. A wireless remote costs very little and makes an immediate, visible difference.

Third, if you are using a DSLR, enable mirror lockup (also called mirror up or exposure delay mode). This flips the mirror up a second or two before the shutter opens, so the vibration from the mirror movement has time to dissipate before the exposure begins. Mirrorless camera users do not need to worry about this step.

Fourth, turn off image stabilization when your camera is mounted on a tripod. This sounds counterintuitive, but stabilization systems are designed to compensate for handheld movement. When the camera is already perfectly stable, the stabilization element can actually drift around looking for motion to correct, introducing blur into your long exposures. Check your lens and camera body for an IS, VR, or OSS switch and set it to off.

Root Cause 2: Shutter Speed Too Short

The second major cause of faint squiggles is using a shutter speed that is simply too fast. If your shutter closes before the firework has finished expanding, you capture only a fragment of the burst instead of a full, flowing light trail. The result is short, broken, faint lines that look incomplete.

Here is a comparison that illustrates the difference clearly:

– At 1/4 second shutter speed, you capture a brief snapshot of the burst. You get dots and short dashes instead of trails. The image looks faint because the sensor only had a fraction of a second to gather light.

– At 2 to 4 seconds, you capture the full expansion of the burst from launch to peak. The light trails are smooth, continuous, and bright. This is the sweet spot for most single-burst shots.

– At 5 to 10 seconds, you can capture multiple bursts overlapping in a single frame. This creates those dramatic, layered compositions with rich light trails throughout the sky.

A Reddit user described their success with exactly this approach: they set the camera to manual focus, locked out the controls, and then just watched the show while holding the shutter open anywhere from two to ten seconds when things looked interesting. That is the kind of timing that produces professional results.

Using Bulb Mode for Perfect Timing

Bulb mode is the secret weapon for fireworks photography. In bulb mode, the shutter stays open for as long as you hold down the remote release button. You open the shutter when you hear or see a firework launch, and you close it when the burst finishes expanding. This gives you complete creative control over exactly how much light trail you capture in each frame.

Most cameras display bulb mode as B or BULB on the mode dial. On some cameras, you access it by setting shutter speed to the longest available setting and then scrolling one step further. Check your manual if you cannot find it.

The beauty of bulb mode is that no two firework bursts are the same. Some explode and fade in 2 seconds. Others send out multiple layers that take 5 seconds to fully unfold. With a fixed shutter speed, you are guessing. With bulb mode, you respond to what is actually happening in the sky.

Root Cause 3: Hot Pixels and Sensor Issues?

There is a third, less common cause of squiggly lines that many photographers never consider: hot pixels. A user on the Cloudynights astronomy forum identified this issue clearly, noting that squiggly lines in long exposure images can actually be hot pixels from the sensor readout rather than camera shake.

Hot pixels are individual sensor pixels that get stuck recording maximum brightness during long exposures. As your sensor heats up over a long night of shooting, more hot pixels appear. They show up as bright colored dots, usually red, green, or blue, scattered across your image.

During very long exposures, the camera’s electronic rolling shutter can create a pattern where these hot pixels appear to trace faint squiggly lines across the frame. This happens because the sensor reads data line by line, and a hot pixel affects each scan line slightly differently.

How to Deal With Hot Pixels

If you suspect hot pixels are contributing to your squiggly lines, there are several fixes. First, enable long exposure noise reduction in your camera menu if you are shooting JPEG. This feature takes a second dark frame exposure immediately after your shot and subtracts the hot pixels automatically. The trade-off is that it doubles your wait time between shots.

If you are shooting RAW, you can handle hot pixels in post-processing. Lightroom and Adobe Camera Raw both have built-in tools that detect and remove hot pixels automatically during import. You can also use the healing brush tool to manually remove any stubborn pixels that remain.

Finally, give your camera time to cool down between bursts of shooting. Hot pixels multiply as the sensor temperature rises. If you notice them increasing over the course of a fireworks show, take a break for a few minutes and let the sensor cool.

Essential Camera Settings for Fireworks Photography

Getting your fireworks photography settings right solves the squiggly lines problem before it ever happens. Here is the complete settings checklist I recommend, based on what consistently works across forums, professional tutorials, and my own testing:

1. Shoot in Manual Mode. Auto mode will fight you every step of the way because it cannot make sense of the extreme brightness changes in a fireworks show. Switch your camera to M and take full control.

2. Set ISO to 100. Low ISO produces the cleanest images with the least noise. Fireworks are surprisingly bright, so you do not need to boost ISO. Staying at base ISO also minimizes hot pixel issues during long exposures.

3. Set Aperture between f/8 and f/16. This mid-range aperture gives you good depth of field and keeps the firework trails sharp from edge to edge of the frame. Start at f/8 and adjust to f/11 or f/16 if your images are coming out too bright.

4. Use Bulb Mode for Shutter Speed. As discussed above, bulb mode lets you time each shot to the actual firework burst. If your camera lacks bulb mode, set a fixed 4-second exposure as a starting point.

5. Switch to Manual Focus. Autofocus systems struggle in dark skies and will often hunt endlessly or lock onto the wrong distance. Set your lens to manual focus and pre-focus on a distant object before the show starts. Then use a piece of tape to lock the focus ring in place so it does not drift.

6. Shoot in RAW Format. RAW files give you far more flexibility for adjusting exposure, recovering highlights, and removing noise in post-processing. JPEG files compress away data you might need later.

7. Turn Off Long Exposure Noise Reduction (for RAW shooters). If you are shooting RAW and handling noise reduction in software, turn this feature off so you do not have to wait between every shot. The dark frame subtraction takes as long as the exposure itself.

8. Turn Off Your Flash. Your flash has zero effect on objects hundreds of feet in the sky. It will only annoy people around you and potentially confuse your camera’s metering system.

9. Disable Live View. Live View can introduce additional sensor heat and drain your battery faster. Use the optical viewfinder instead, or set up your composition and then switch Live View off.

10. Turn Off Image Stabilization. As covered earlier, stabilization systems can introduce blur when the camera is tripod-mounted. Switch it off on both your lens and camera body.

Step-by-Step Troubleshooting Guide

If you have already taken fireworks photos and are staring at faint squiggles, here is a diagnostic checklist to identify and fix the problem. Work through these steps in order:

Step 1: Examine the squiggle pattern. If all the light trails in your image are wavy or zigzagged in the same direction, you are dealing with camera shake. If the trails are short and broken but relatively straight, your shutter speed was too fast.

Step 2: Check for hot pixels. Zoom into your image at 100 percent and look for bright colored dots that do not match any light source in the scene. If you see scattered red, green, or blue points, hot pixels are contributing to your problem.

Step 3: Review your EXIF data. Check the shutter speed, aperture, and ISO recorded for each shot. If your shutter speed was under 1 second, that explains the faint, short trails. If you were shooting handheld at any shutter speed, camera shake is almost guaranteed.

Step 4: Verify your focus distance. If your fireworks look like soft, blurry blobs rather than sharp lines, your focus was off. Check whether your lens was set to autofocus and may have missed, or whether it drifted during the show.

Step 5: Check image stabilization status. If IS or VR was on while you were using a tripod, that alone can cause the wobbly lines you are seeing. Make a note to turn it off next time.

Step 6: Confirm you used a remote or timer. If you pressed the shutter button with your finger, even on a tripod, the camera moved at the start of each exposure. This creates a distinctive squiggle at the beginning of each trail.

Step 7: Test with corrected settings. Set up your tripod, attach your remote release, switch to manual mode at ISO 100, f/8, and bulb mode. Take several test shots of any available light source at night. If the squiggles disappear, you have confirmed your fix.

How to Photograph Fireworks Without a Tripod?

What if you do not have a tripod? This is one of the most common questions in fireworks photography forums, and the honest answer is that it is much harder. However, there are techniques that can help you get acceptable results in a pinch.

First, find a stable surface to rest your camera on. A wall, a railing, the roof of a car, or even a tightly rolled jacket on the ground can serve as an improvised support. Use a small beanbag or folded cloth to angle the camera slightly upward. The key is making sure the camera cannot move during the exposure.

Second, increase your shutter speed and accept shorter light trails. If you must shoot handheld, try to keep your shutter speed at or below 1/30 second. You will not get long, flowing trails, but you can capture individual burst moments with reasonable sharpness. Brace your elbows against your body, hold your breath, and squeeze the shutter gently.

Third, use your camera or phone’s night mode. Modern smartphones use computational photography to stack multiple short exposures into a single image. While you will not get the same control as a dedicated camera with bulb mode, the results can be surprisingly good. Turn off the flash, hold the phone as still as possible, and let the software handle the heavy lifting.

Fourth, if you are using a phone, look for a phone tripod or clamp. These are small, inexpensive, and can be attached to railings or poles. Even a mini tripod that sits on a table is better than handholding.

Common Mistakes to Avoid

Beyond the main technical issues, here are the frequent mistakes that ruin fireworks photos:

– Using auto ISO. The camera will ramp ISO up to extreme levels in the dark sky, producing grainy, noisy images full of hot pixels. Lock ISO at 100.

– Shooting in JPEG only. JPEG discards data you need for recovering blown highlights from bright bursts. Always shoot RAW or RAW plus JPEG.

– Composing too tight. Fireworks spread wider than you expect. Zoom out and leave room in your frame for the full burst expansion.

– Ignoring wind direction. Wind blows smoke across your scene, creating a haze that blocks subsequent bursts. Position yourself upwind of the launch site when possible.

– Starting too late. The first 5 minutes of a show have the cleanest sky. As the show progresses, smoke accumulates and blocks your view. Be set up and ready before the first shell launches.

FAQs

Conclusion

Faint squiggles in your fireworks photos are a fixable problem, not a permanent limitation of your equipment. The issue almost always comes down to two things: camera movement during long exposures and shutter speeds that are too short to capture the full burst. Address those two factors, and your results will improve immediately.

Start with the basics. Mount your camera on a tripod, use a remote shutter release, and switch to manual mode at ISO 100 and f/8. Use bulb mode so you can time each shot to the actual firework. Turn off image stabilization, pre-focus manually, and shoot RAW. These fireworks photography troubleshooting steps will take you from squiggly lines to smooth, dramatic light trails in a single session.

The next fireworks show you attend will be different. You will understand exactly what your camera is doing during each exposure, and you will have the confidence to adjust on the fly. Grab your gear, find a good vantage point upwind of the launch site, and enjoy capturing the show.