How to check the light at a location before a shoot

Why the usual way fails

Light at a location changes a lot within a few steps, and memory of how bright a place felt is unreliable once you have seen five of them. Camera exposure readouts mix the light with your settings, so comparing spots means keeping ISO and aperture fixed and writing everything down. A dedicated handheld meter gives clean numbers, but it is one more thing to buy and carry. On a quick scouting walk, most people end up taking test photos and guessing from the screen. And when you come back a week later to shoot, it is hard to remember which corner was the brighter one.

How WristLux helps

WristLux turns the light sensor in your Wear OS watch into a simple meter that shows live lux or foot-candles. Photo and video scouting is one of the listed uses, and there is a photo mode for that situation. Walking a location with a session running records the minimum, maximum and average, so you leave with numbers instead of impressions. It runs on the watch alone, with no phone and no account needed. You can switch units so the number matches whatever guide or lighting notes you work from.

Step by step

1. Before you head out, pick lux or foot-candles to match the guide or gear notes you use.
2. At the location, open WristLux and choose the photo mode.
3. Start a session and walk the area you might shoot in.
4. Hold the reading at the spot you like most so you can compare it with the live number elsewhere.
5. Note the session min, max and average for each location before moving on.
6. Back home, compare the numbers to decide which spot needs extra lights.

Tips

• Scout at the time of day you plan to shoot. A window-lit room at noon and the same room at five in the afternoon are different locations as far as light goes. If you can, scout twice at different hours and compare the session averages side by side.
• Keep your wrist at the height where the subject will be and avoid casting your own shadow on the sensor. Wrist angle, shadows and sleeves all shift the reading. A quick way to keep it consistent is to hold your arm out in front of you, the way you would hold a small light meter.
• If you have a known reference, such as a meter on set or a colleague's calibrated device, use the calibration adjustment once so your watch reads closer to it.
• Use the numbers to rank spots, not to set exposure. WristLux is a quick reference, and your camera still makes the final call on the day. The point is to know which spot needs a reflector or an extra light before the crew arrives.

Questions