Review on Lightdow White Balance 18% Gray Reference Reflector Grey Card - 12 x 12 Inch (30 x 30 cm) with Carry Bag [Folded Version] by Mike Lunde

This is a handy little helper to help you set the right exposure on the waveform monitor. It's lightweight so it can be easily attached to a target area or stand, and it's large enough to be seen well at medium distance for close-up shots. Have the interviewer hold it directly under their face before you start filming, and you can adjust your IRE for both 18% and skin tones. I'm mastering my waveform monitor under known lighting conditions and my version is actually 18% gray. Some reviews have claimed that their color is not 18% grey. While I can't see what product they received to know if it was a manufacturing defect or operator error, I can confirm mine is 18% grey. Are you getting the same results as the $300 gray exposure cards? I don't know because I don't have $300 to spend on any of them. But the reality is that if you know your camera, how to read the waveform monitor, and how to get the right exposure based on what picture profile you're shooting (magazine or whatever), then it will work for you make it work for you and make it easier to score shots than guessing or using a smaller solution. For the price you can't beat it.