What is moire in photography?

It is a wavy, often rainbow colored distortion that appears when a fine repeating pattern in the subject, such as pinstripes or houndstooth, interferes with the grid of pixels on a camera sensor. The bands are not actually on the fabric; they only exist in the photo.

Does changing my camera's aperture fix moire?

Sometimes, but not reliably. Results vary by camera and lens, with some sensors showing less moire at a narrow aperture like f/11 and others at a wide one. Changing your shooting distance or angle to the garment works more consistently.

Why did moire suddenly appear when I switched from my phone to a real camera?

Many phones apply moire reduction automatically in their default photo mode. A dedicated camera, or a phone shooting RAW, usually does not, which is why the same striped shirt can look fine on one and banded on the other.

Can I fix moire after the shoot in editing software?

Often, partially. Lightroom and Capture One both include a moire reduction tool, and it works reasonably well as a cleanup step. It is not as reliable as avoiding the alignment that causes moire in the first place.

Which patterns are most likely to cause moire?

Fine, high contrast, evenly repeating patterns cause the most trouble: thin pinstripes, houndstooth, herringbone, small gingham checks, and dense micro prints. Bold, widely spaced patterns rarely trigger it.

← Blog

Product photography

How to photograph patterned clothing for ecommerce without the moire effect

2026年9月26日 · 4 min read

Moire is the wavy, rainbow colored distortion that appears when a fine repeating pattern, like a striped shirt or houndstooth blazer, conflicts with your camera's sensor grid. It shows up worst in tight, straight on shots of fine stripes or checks. The most reliable fix is not an aperture setting but changing your distance or angle to the garment, since that changes how the pattern lines up with the sensor before the photo is taken.

用 RorlAI 完成Apparel: Put a flat garment on a model that fits it.

The short answer

If a striped or checked garment suddenly shows wavy bands of colour that are not actually printed on the fabric, that is moire, not a dirty lens or a bad file. It happens at the exact moment a fine repeating pattern lines up badly with the grid of pixels on your camera's sensor, and no amount of retouching after the fact fixes it as cleanly as avoiding it during the shoot.

What actually causes it

Every digital sensor is a grid of pixels at a fixed spacing. When the garment you are photographing has its own fine repeating pattern at a similar spacing, the two grids interfere with each other the way two window screens do when you look through both at once, producing a third pattern that exists only in the photo. It gets worse the finer and higher contrast the pattern is, and worse again the further away the garment is in frame, since a distant fine pattern packs more repeats into fewer sensor pixels.

Patterns most likely to trigger it, roughly in order of how often sellers run into it:

Thin pinstripes, especially on suiting and dress shirts
Houndstooth and herringbone weaves
Small, tight checks like gingham at a small scale
Fine knit meshes and some technical activewear fabrics
Dense small scale prints like polka dots or micro florals

Fixes that actually work

1Change your distance to the garmentStep closer or further back and reframe. This changes how the pattern's repeat spacing maps onto the sensor grid, and is the single most reliable fix because it does not depend on guessing the right aperture.
2Change your angle slightlyA few degrees off dead straight on often breaks the alignment that causes moire without changing how the garment reads to a buyer.
3Avoid extreme close crops on the worst offendersA detail shot of a fine pinstripe weave is exactly the framing most likely to trigger it. Shoot the close up slightly wider than you think you need, then crop in post if the pattern holds up.
4Try both a wide and a narrow apertureResults are inconsistent across cameras: some sensors show less moire stopped down toward f/11, others show less wide open. Neither is reliable enough to depend on alone, which is why changing distance and angle comes first.
5Fix what survives in editing softwareLightroom, Capture One and similar tools carry a moire reduction control for exactly this case. It works best as a cleanup step on an otherwise well shot photo, not as a substitute for avoiding the problem at capture.

Where AI generation runs into the same fabric problem

Fine, regular patterns are also one of the harder things for an AI model to reproduce exactly across a generated image, for a related reason: a repeating pattern has to stay consistent in scale and alignment as it wraps around a body or drapes on a mannequin, and small drift in that repeat reads as visibly wrong the same way moire does, even though the underlying cause is different. This is worth knowing before you generate on model shots from a heavily patterned base photo, since it is a genuine limitation rather than something a better prompt fixes.

Where RorlAI fits

RorlAI works from your own photographed garment rather than generating fabric texture from a text description, which is what keeps a striped or checked pattern close to the original on a colorway or on model shot. It is still worth clearing moire out of that base photo first using the steps above, since a distorted pattern in the source image carries into everything generated from it.

Common questions

What is moire in photography?: It is a wavy, often rainbow colored distortion that appears when a fine repeating pattern in the subject, such as pinstripes or houndstooth, interferes with the grid of pixels on a camera sensor. The bands are not actually on the fabric; they only exist in the photo.
Does changing my camera's aperture fix moire?: Sometimes, but not reliably. Results vary by camera and lens, with some sensors showing less moire at a narrow aperture like f/11 and others at a wide one. Changing your shooting distance or angle to the garment works more consistently.
Why did moire suddenly appear when I switched from my phone to a real camera?: Many phones apply moire reduction automatically in their default photo mode. A dedicated camera, or a phone shooting RAW, usually does not, which is why the same striped shirt can look fine on one and banded on the other.
Can I fix moire after the shoot in editing software?: Often, partially. Lightroom and Capture One both include a moire reduction tool, and it works reasonably well as a cleanup step. It is not as reliable as avoiding the alignment that causes moire in the first place.
Which patterns are most likely to cause moire?: Fine, high contrast, evenly repeating patterns cause the most trouble: thin pinstripes, houndstooth, herringbone, small gingham checks, and dense micro prints. Bold, widely spaced patterns rarely trigger it.