Why Does My Video Flicker? Fix Flicker, Banding, Grain, Moire and Rolling-Shutter Wobble

Last updated: October 2026

The room pulses. The sky breaks into steps. A shirt ripples with colors that were never there. None of these problems is random. Each artifact has a cause, a test that proves it, and a fix that works while you film. Post production helps some of them a little, and others barely at all. This guide works in that order: name it, find the cause, fix it on the day, then talk about rescue work, starting with the question creators type first: why does my video flicker?

Start by naming what you actually see

Play the original file at full screen and watch one short section three times. Watch brightness first: pulsing, or dark bands drifting? Then smooth areas such as skies and walls: smooth, or stepped? Then edges and patterns: do lines lean when the camera moves, and do fine patterns shimmer?

Then compare versions. Clean original, dirty export: your export bitrate is the problem. Clean export, dirty upload: platform compression is the problem, and the fix is a better master file. Dirty original: no export setting will remove it.

One habit helps every time: shoot a ten second test clip after any change and play it back large. Artifacts hide on a small camera screen. Most settings named here, shutter speed, frame rate, picture profile, and stabilization mode, are covered in plain language in our guide to vlogging camera settings explained.

Flicker and dark bands under room lights

What it looks like. A whole frame pulse, brightness rising and falling in a steady rhythm. Or worse, dark horizontal bands that roll down the image or stripe your subject, making faces look tired and walls look dirty.

What causes it. Mains electricity cycles. At 60 Hz, in North America and parts of Asia, lights pulse 120 times a second. At 50 Hz, in Europe, the UK, Australia, and much of the world, lights pulse 100 times a second. Your sensor samples that light in slices set by the shutter. When slices and pulses line up badly, frames catch uneven light. At faster shutter speeds, different rows catch different parts of the pulse, and that is where the rolling bands come from.

The fix while filming. Start with the shutter. In a 60 Hz region use 1/60 or 1/120 of a second; in a 50 Hz region use 1/50 or 1/100. Filming at 30 frames per second under 50 Hz light is a classic trap: the light pulses 100 times a second, and a 1/60 shutter catches a different slice of that pulse on every frame, so the brightness breathes even when no band rolls. Pair the frame rate with the region instead, 25 frames per second where the mains run at 50 Hz and 30 where they run at 60 Hz, then set the shutter to match. Next, turn on any flicker reduction, anti-flicker, or flicker scan setting; some cameras fine tune the shutter in tiny steps to sit exactly on the pulse. Last, suspect the light. Cheap LED bulbs and dimmed panels pulse hard, and a dimmer at halfway can flicker at almost any shutter speed. Raise the dimmer to full, swap the bulb, or change the light.

Slow motion is its own case. High frame rates need fast shutters, and fast shutters slice each light pulse into thin pieces. At 120 frames per second in a 60 Hz room, a 1/120 shutter can still sit on the pulse. Push to 180 or 240 frames per second and no shutter speed lines up cleanly with an AC powered light. For indoor slow motion, shoot in daylight, or use flicker free lights that run on DC or battery power and feed the lamp a steady current instead of a pulsing one.

The fix in post, and the verdict. A deflicker tool can calm mild whole frame pulsing, and dedicated deflicker plugins go further on stubborn clips. A free trick helps on static shots: duplicate the clip on the track above, shift the copy one frame later, and set its opacity to 50 percent. Each frame blends with its neighbour, which averages the brightness swings down. It falls apart on fast movement, where the offset copy ghosts, so save it for locked off shots. Rolling bands are harder, because they move across the subject and leave software little to rebuild from. If dark bands roll across a talking head shot for the whole take, reshoot it; ten minutes with a matched shutter beats an evening of rescue work.

Stepped colors in skies and plain walls

What it looks like. A sunset sky that should melt from blue to orange instead moves in flat shelves of color, each with a hard edge. The same shelves appear on plain walls and fog.

What causes it. Most cameras and phones record 8-bit color: 256 steps per color channel. A slow gradient across a big sky may need far more, so nearby pixels get rounded to the same value and a step forms. Compression makes it worse, because codecs save space by simplifying smooth areas first. After upload the platform compresses it again, on a smaller budget, and the sky pays first.

The fix while filming. Expose correctly, because stretching a dark gradient upward in the grade widens each step. If your camera offers 10-bit recording, use it for gradient heavy work such as sunsets and stage light; 10-bit holds 1,024 steps per channel. Our best mirrorless camera for vlogging guide covers which camera features matter here, including 10-bit recording. A flatter profile can help too, if you plan to grade it. The grading side of that choice is covered in our color grading guide for vloggers.

The fix in post, and the verdict. Add a fine layer of grain, or use a dither option on export. The tiny random variation breaks each hard step into a soft transition, and the shelves vanish at normal viewing distance. If your editor offers a high bit depth or float pipeline for the project, switch it on before grading gradient heavy shots: the extra precision stops your own adjustments from adding fresh steps while you work. Export at a high bitrate and full resolution. Light banding in a background sky is fixable this way. Severe banding baked into an 8-bit clip, with wide shelves across the main subject, is not. Reshoot in 10-bit if the camera allows it, or reframe so the empty gradient takes up less of the shot.

Speckle and grit in the shadows

What it looks like. A dancing speckle across the frame, worst in shadows and dark areas. In bad cases it becomes colored blotches that crawl across walls and skin.

What causes it. When light is scarce, the camera amplifies the signal to reach a usable brightness, and the amplification raises noise along with the picture. High ISO, small sensors, and underexposure are the usual trio. The shadows you lift in the edit were recorded with the least information and the most noise, so the lift brings the grit up with them.

The fix while filming. Light is the real fix, and it can be simple: move closer to a window, face the light you have, add one soft light near the camera. Open the aperture if the lens allows it and let ISO fall. Expose so the shot looks right in camera, or slightly bright. Our guide to low light tips covers simple setups like these. A clean clip can be darkened in the grade, and darkening hides noise.

The fix in post, and the verdict. Noise reduction works, at a price. Temporal reduction suits static talking shots, but push it too far and skin turns waxy and hair smears. Color noise reduction is safer and can go further, since colored blotches bother viewers most. Work in this order: color noise first, gentle brightness reduction second, sharpen last. Judge the result at full size, never in a small preview window, because the preview hides leftover noise and over smoothing alike. Temporal reduction is slow to render, so run a ten second test section and export it before committing to a full timeline render. One more reason to clean noise before export: a codec spends bits describing the speckle, so a noisy clip reaches the platform with less quality left for the picture itself. A piece to camera filmed in near darkness, faces buried in crawling noise, deserves a reshoot with light if one is possible. Post tools cannot invent detail the sensor never captured.

Rippling rainbows on shirts and screens

What it looks like. Wavy rainbow bands that swim across a patterned surface as the subject moves. A shirt that looked plain in the mirror shimmers on camera. A filmed screen adds dark bars or a crawling grid of its own.

What causes it. The sensor samples the scene on a fixed grid. When a pattern in the scene has similar spacing to that grid, the two interfere and invent a larger pattern that was never in the room. Many stills cameras carry an optical low-pass filter that softens the image a touch to prevent this. Many video focused cameras use a weak filter or none, to keep video sharp, so they moire more readily.

The fix while filming. Distance is the strongest lever: one step closer or further changes the pattern spacing, often enough to clear the ripple. A small angle change helps for screens and buildings. Slight defocus works too, so shift focus a fraction off the patterned surface. For clothing, the reliable fix is blunt: change the shirt. Fine stripes, tiny checks, and tight herringbone are repeat offenders; plain fabrics and large patterns are safe. For screens, avoid steep angles and test first.

The fix in post, and the verdict. A masked blur can calm mild shimmer, and pulling saturation down on the area reduces the rainbow. Strong moire across a moving subject defeats masking fast, because the pattern changes shape in every frame. If a shirt rainbows through the whole video, change it and reshoot. It is a two minute fix on the day and an impossible one a week later.

Filming a screen or TV without bars and rainbows

What it looks like. A dark bar rolls slowly down the screen, or one half of the display looks dimmer than the other. Some screens shimmer with a fine grid, and a phone screen filmed up close can pulse even in a well lit room.

What causes it. A screen is not lit steadily. It redraws itself many times a second, 60 times a second on a typical monitor or TV, and many displays also pulse their backlight to control brightness, harder at low brightness settings. Your shutter catches a slice of that cycle. Catch a partial redraw and a dark band appears where the screen had not yet refreshed. Catch the backlight pulse unevenly and the whole display breathes.

The fix while filming. Match the shutter to the screen rather than the room: 1/60 of a second is the starting point for a 60 Hz display, then nudge with flicker scan if your camera offers it. Turn the screen brightness up to full, which steadies most backlights. Face the screen square on to calm the moire grid, and shift your distance a little if the shimmer stays. Lock exposure and focus once it looks clean, because auto systems hunting on a screen can restart the pulsing. For tutorial style videos, skip the camera where you can: a direct screen recording, or a capture card between the device and your computer, gives a clean image no shutter setting can match. Our guide to the best capture cards covers that route.

The fix in post, and the verdict. A slow rolling bar on a screen sitting in the background is often ignorable; viewers accept it as the look of a filmed screen. A bar crossing the part of the screen the video is actually about cannot be painted out convincingly. Cover it with the direct recording, a still image, or a tighter crop, and next time film the screen only for the wide shot.

Leaning walls and jelly movement on pans

What it looks like. Vertical lines lean during a pan, as if the building were made of rubber. Walking shots wobble at the edges, and vibration from a vehicle turns the whole frame to jelly.

What causes it. Most cameras and phones here use a rolling shutter: the sensor reads the top lines first and the bottom lines a fraction later. Move during that fraction and straight lines tilt. Faster readout means less wobble, which is one reason some of the best phones for vlogging handle quick movement surprisingly well, but no consumer device reads the whole frame instantly.

The fix while filming. Slow down. A pan that takes twice as long often shows half the lean. Pan from the hips, start and stop gently, and cut instead of whipping to a new subject. Soften the mount, too: hands absorb more vibration than a rigid pole on a bike or car. One surprise: in-body stabilization can add wobble at wide angles, as the corners pulse in a careful walking shot. Test with stabilization off on a gimbal, or at a longer focal length, and trust the test clip over the menu.

The fix in post, and the verdict. Rolling shutter repair and stabilization tools can straighten mild lean and calm small wobbles, at the cost of a crop. They do not handle hard vibration: when every line recorded a different shake, no stable picture is left to recover. A walking shot that jellies throughout needs a slower reshoot with a softer mount. A single quick pan that leans for a second can simply be cut.

Quick triage: symptom, cause, first move

Artifact questions creators ask most

Keep exploring

• Low Light Tips for Cleaner Video
• Best Phones for Vlogging
• Vlogging Camera Settings Explained
• Best Capture Cards
• How to Color Grade Log Footage: Log Profiles and LUTs for Vloggers