LED wall shoots: pixel pitch and viewing distance

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LED wall shoots: pixel pitch and viewing distance

How far from an LED wall the camera can stand before the pixels show, and why the camera can see them sooner than your eye.

In short: Multiply the pixel pitch in millimetres by 3.44 to get a distance in metres. That is where a viewer with normal eyesight can no longer resolve a single pixel gap. A 2.6mm pitch gives about 8.9 metres. A camera can show the gaps from further away, so the calculator adds a cautious camera figure of 5 metres per millimetre. Test with the camera and lens you will use.

By James Jones, founder of Granary Digital · Updated 5 November 2026

An LED wall is made of small lamps set in a grid. From close up, you see each lamp. From further back, the lamps blend into one image. The calculator below tells you where that change happens for normal eyesight, so you can plan the camera position before the wall goes up.

The formula

Normal 20/20 vision resolves detail of about one arcminute, a sixtieth of a degree. The distance where one pixel gap subtends one arcminute is the pitch multiplied by about 3438, so a pitch of 1 mm gives about 3.44 metres. In practical terms:

Read the pixel pitch from the wall's spec sheet, in millimetres.
Multiply it by 3.44. The answer is in metres.

That is the distance where a viewer with normal eyesight stops seeing individual pixels.

The calculator also gives a camera planning figure, the pitch multiplied by 5. That is our own cautious rule, about one and a half times the eye figure, because a lens magnifies the wall and a sensor can pick out the pixel grid before an eye would. You can edit both rules, and it works backwards too, giving the coarsest pitch that suits a camera distance.

The wall and the shot

Pixel pitch (mm), from the spec sheet

Planned camera distance from the wall (m)

The two rules (both editable)

Eye rule (choose one, or edit the number below) Metres of distance per millimetre of pitch

The first option comes from the arcminute figure for normal visual acuity (tan 1/60 degree gives 3,438 pitches). The second is a widely quoted supplier rule of thumb with no single published source, so treat it as a rough guide.

Camera rule: conservative planning figure

Metres of distance per millimetre of pitch

This is Granary's own conservative planning figure, about one and a half times the eye rule. It is not a published standard. Lens length, sensor, focus and the wall's processing all move the real answer, so test with your camera and lens.

Result

Eye: closest comfortable distance-

Camera: closest planning distance-

Coarsest pitch for your distance (eye rule)-

Coarsest pitch for your distance (camera rule)-

Common pitches at a glance

Pitch	Eye rule	Camera rule

Uses the two rules above. Your wall's own pitch is on the supplier's spec sheet.

How this is worked out

Eye: minimum distance in metres = pitch in mm x the eye rule. At one arcminute, 1 / tan(1/60 degree) is about 3,438, so a 2.6 mm pitch gives 2.6 x 3.438 = 8.9 m. This is the distance where the gap between pixels shrinks below what a viewer with 20/20 eyesight can resolve.
Camera: minimum planning distance in metres = pitch in mm x the camera rule (5 m per mm unless you change it). It is a deliberately cautious figure, because a lens magnifies the wall and a sensor can pick out the pixel grid or moire before an eye would.
Reverse: coarsest pitch in mm = distance in metres / the rule. At 4 m, the eye rule allows about 1.16 mm and the camera rule allows 0.8 mm.
Feet are the metre figure x 3.2808.

The eye figure follows the one arcminute convention for normal visual acuity. The 1 m per mm rule is a common rule of thumb. The camera rule is Granary's own planning figure. None of them replace a camera test.

Worked figures

1.9mm pitch: 1.9 times 3.44 gives about 6.5 metres for the eye, and 9.5 metres on the camera planning rule.
2.6mm pitch: about 8.9 metres for the eye, and 13 metres for the camera.
3.9mm pitch: about 13.4 metres for the eye, and 19.5 metres for the camera.

A wall with a 2.6mm pitch shot at 4 metres will show its pixels to a viewer in the room, and the camera planning figure of 13 metres says the camera is well inside the distance where the pixels can show.

Using the figure on a shoot

Compare the planned camera distance with both figures. If the camera stands closer than the camera figure, the pixel gaps are visible through the lens and need a plan. Options include a softer focus, a wider lens, a greater distance, or a different wall. A moire guide covers the banding that appears in the picture as well.

At Granary an LED wall is hired in for the job, so the pitch depends on the wall supplied. Ask for the pitch on the spec sheet before you plan the shot.

Common mistakes

Using the resolution instead of the pitch. Resolution is a count of pixels, and pitch is the physical spacing. The formula needs the spacing.
Mixing millimetres and metres. The pitch goes in as millimetres and the distance comes out in metres.
Treating the eye figure as the camera figure. The camera can show detail sooner, especially through a long lens.
Forgetting the moire. Close shots with a sensor that is close to the pixel grid can show a pattern even where the gaps are not visible.
Assuming a figure from another wall. Each wall has its own pitch, and the figure is only as good as the spec.

The green screen clean key guide covers the lighting side of a green screen set, and the tracking markers and plate shooting checklist covers the camera side of a plate. If you need a crew for the shoot, see film crew hire.

Sources

Wikipedia, Visual acuity, read 5 November 2026

Shooting this for real? Book the room and the crew as one job. We will tell you honestly which roles your shoot needs. Hire the rooms, add crew →

Related guides

Questions we get asked

What is pixel pitch?

Pixel pitch is the distance in millimetres from the centre of one LED to the centre of the next. A smaller pitch gives a sharper wall, and it costs more. Check the figure on the supplier's spec sheet, not on the wall.

How far can I stand from an LED wall?

Work out the distance with the formula on this page, then compare it with your planned camera distance. If the camera is nearer than that figure, the pixels can show in the frame, so the lens and the moire need testing.

Does the calculator work for camera framing?

It gives two figures. The eye limit is the pitch multiplied by 3.438 metres per millimetre. The camera figure is Granary's own cautious planning rule of 5 metres per millimetre, which is not a published standard. A camera with a longer lens magnifies the wall, so the gaps can show at greater distances, and the sensor can add moire. Test the set-up on camera before the day.

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