Thanks for sharing Doug. Your optical knowledge is way more than mine. I have that old age far sighed disease. The doc has me wearing reading glasses with at +1.5 to read. He says my eyes don’t have enough stigmatism to warrant the extra cost of prescription glasses. If I’m going to order lenses and make my own, where can I found out what lenses to get to that will give me a +1.5 underwater?
don
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