Originally Posted by
kpshann
I am so happy you all are helping me! Ok from what I am understanding I should feel one I know is hard (scratch coated) and one I think it not. The sleeker one will be hard coated. I can also put a drop of water on the concave side and if it stays balled up when I move it, it is hard coated.
Mauro can you explain this to me more:deep half of the lens in a solution of water and 10% NaOH or KOH, leave for 30 minutes, if you'll see a delaminatin...it is hard coat.
What is NaOH and KOH?
Sharpstick I dont mean to sound dense but how can I check the UV transmision? I do not have a machine or tool to do that.
I just want to make sure I can check these lenses as the lab is saying they dipped them themselves.
Thanks again!
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