People with bi-focals (that's right, I mean you old people). Do you look through you bi-focal lens or just your normal lens when shooting? I do not wear bi-focals, but probably could use them. I sit at a computer station for 12 hours monitoring 5 screens at a chemical plant. I was told when I took this job on the board, I would need bi-focals within a year. Plus this iPhone don't help either
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