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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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OT - spectacles and metal work - astigmatism
My reading / up-close glasses make square things look trapezoid.
I assume this is due to some astigmatism correction in the lenses, it makes it really hard to judge if something is square to something else when working. Has anyone had their spectacle / glasses prescription made without astigmatism correction to avoid this? |
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