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The E2e definitely has Pyrex glass, no doubt. But the same cannot be said of the 9P unless after visual inspection you see a black Delrin retainer ring from the bezel's front. If however no ring is present then it's for sure press fit Lexan lens. (Your black 6P meanwhile has newer clamshell packaging inside box so I know it features Pyrex glass.)I was not aware of the difference, but will check and post the findings. Thanks for bringing that to my attention!
Okay, the 6P 9P and the E2E all have "Optically-coated Pyrex Lens" which is listed on the boxes and I confirmed.