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I'm still overloaded with work so I made very little progress on this project.
The grinding of the front lens is finished and, before I start reinventing the wheel, perhaps someone can suggest some good ways of testing it after the polishing.
The front surface is convex with a radius of 6770 and the second one is also convex with a radius of -822. Centre thickness is 14.3
I could use the grinding tools to make test plates but R1 is way too long for that and, if I can, I would like to avoid test plates altogether.
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