Bring your own light and make it the strongest light hitting your guests' faces. Use one large, soft source just above eye level, angled down. For still photos, use flash rather than a continuous light, because flash freezes movement and overpowers whatever the venue is doing. Lock the camera's exposure and white balance. Keep guests about a metre in front of the backdrop. Then test at the darkest point of the night, not at setup.

That's the whole method. Here's why each part matters, and how to handle the rooms that fight you.

Why the room's light doesn't count

Reception lighting is designed for mood: candles, chandeliers, dimmed pot lights, coloured uplighting, the DJ's moving heads. It also changes through the night. The house lights are up when the booth is set up at 4pm, down for dinner, and lower again once dancing starts.

A booth that relies on room light looks fine at setup and falls apart at 9:30. The rule is simple: the booth's light should do almost all the work, and the room's light becomes background.

Flash or continuous light?

This is the decision that matters most in a dim hall.

Continuous light (a ring light or an LED panel) is on all the time. What you see is what you get, and it's the only option for video. In a dark room it has two problems. To get enough exposure the camera either raises its sensitivity, which adds grain, or slows its shutter, which blurs anyone who moves. And the light has to be bright enough that guests stare into it between shots. Ring lights also tend to give flat faces, ring-shaped reflections in the eyes and glare in glasses.

Flash (a studio strobe or speedlight) fires a burst of light for a tiny fraction of a second. It is also the only way to get the hard, sculpted look of a glam photo booth — a ring light cannot do it. That freezes the jump and the hair flip, and it's strong enough to overpower the room, so the purple from the uplighting mostly disappears. Guests aren't squinting at a lamp between frames. The trade-off is that it takes someone who knows how to set it, and the result isn't visible until the shot is taken.

For still photos in a dark room, flash wins. For video, continuous light is the only choice, and it has to move with the camera.

Here's what we run, for reference. Our DSLR booth uses a studio strobe, not a ring light, and the attendant adjusts the light through the night. The Magic Mirror pairs a professional DSLR with beauty-dish lighting. On the 360 booth, the LED lighting travels with the camera as it orbits.

Where to put the light

Height. Just above eye level, angled down. Too low and everyone looks like they're telling a campfire story. Too high and tall guests get dark eye sockets.

Size. A bigger source is a softer source. An umbrella, softbox or beauty dish wraps light around faces. A small bare light carves hard shadows and makes foreheads shine.

Glasses. Raise the light and angle it down so the reflection bounces below the lens, and move it slightly off to one side of the camera. If a guest in glasses looks clean in your test shot, everyone else will too.

Groups. Light falls off fast with distance. Put a light one metre from the front row and two metres from the back row, and the back row gets about a quarter of the light. That's why the people at the edges and the back come out dark. The fix is counter-intuitive: pull the light back and turn it up. At three metres and four metres, the back row still gets more than half what the front row does. A wider source helps the edges too.

Mixed light and colour casts

A typical reception mixes three colours at once: warm room bulbs, colour-neutral booth light and whatever colour the uplighting is. The camera can only correct for one.

Make the booth light dominant. With flash, a reasonably fast shutter and low sensitivity, the room barely registers in the exposure and its colour goes with it.
Set white balance by hand. Set it to your booth light and leave it there. Auto white balance shifts from guest to guest, so the same backdrop turns warm in one strip and cool in the next.
Get out of the beam. Don't place the booth where an uplight or a moving head sweeps across the backdrop or the guests.
Watch the windows. A daytime event near big windows changes colour and brightness as the sun goes down. Face the booth away from them or block them behind the backdrop.

Backdrop distance

Guests pressed against the backdrop throw a hard shadow outline right behind them. Move them forward about a metre and the shadow falls low and mostly out of frame. Raising the light helps for the same reason.

A white backdrop goes grey as guests step away from it, because it's getting less light than they are. Either light it separately or find the middle ground: about a metre, with the main light high.

A dark backdrop wants the opposite. More distance keeps it properly dark.

Sequins, metallics and mirrored panels throw hot spots back at the lens. Angle the light so the reflection goes off to the side, and check a test shot before the first guest arrives.

All of this needs floor space, which is why booths ask for more room than the booth itself takes up. Our DSLR booth needs roughly 8×8 feet and a standard outlet within about 20 feet.

Lock the camera

Auto exposure gets fooled by clothing. A group in black suits makes it brighten everything; a white gown makes it darken everything. Set exposure, sensitivity and white balance manually, test them, and leave them alone. In a booth, consistency beats creativity: the tenth group should look as good as the first.

Test at 10pm, not 4pm

Run your final test with the room lights set the way they'll be during dancing, and with the DJ's lights running if you can. Test a group of six, someone tall, and someone in glasses. And check a print, not just the screen. A backlit screen flatters everything. Paper doesn't.

If you're hiring rather than building

You don't need to talk gear with a booth company, but three questions tell you a lot:

Flash or ring light? In a dark ballroom, the answer shows in every print.
Can I see photos from a dark reception at 10pm? Not showroom shots taken in daylight. Ours are in the photo booth gallery.
Who adjusts the light during the night? Rooms change. Someone should be watching.

Send us your venue when you check your date and we'll tell you how we'd light it.

How to Light an Indoor Photo Booth (Even in Dim Halls)