About the product
- WhiBal G7 White Balance Studio Card - 6 Mil PolyBag Case - WhiBal Warranty
- Spectrally neutral - reflects all colors through the spectrum equally. The G7 Reference Card has both a and b Lab channel values of less than 1 at D50 and are spectrally "flat". It's spec'd at less than +/- 0.5
- Maintains its spectral neutrality under all reasonable temperature and environmental conditions
- Rugged - waterproof and scratchproof (color goes all the way through, not just a coating on top)
- Does not respond to UV light any differently than the visible spectrum
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