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This is my first time installing a flat, clear AR crystal, and I’d like to be sure I’m installing it correctly (AR coating down.)
I know which side was face down when the crystal was wrapped in paper. I know that typically, when they’re opened, the AR coating is “up,” but I’d like to learn how to be certain.
I looked for differences in sunlight, with and without a polarizing filter. Bevels are nearly equal on both sides of the crystal.
The reflection from my phone screen is the only way…
Installing a flat sapphire crystal with clear AR on one side—but which side?
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