Why choose LIGHT RUST and not YELLOW in a 3-lens kit?

The Light Transmittance tells us how much light travels through the lens, measured in percent. The brighter the lens is the higher percentage of light goes through the lens. The Light Transmittance is affected by various elements like the thickness of the lens, coatings added to the lens, filters in the lens etc. In this question we solely speak to how the colour of the lens affects the Light Transmittance.

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What is the core DNA of Wiley X?