When working with soft glass you really need to use special glasses which filter out the strong sodium ion glare from the hot glass. This not only allows you to see what you are doing but protects your retinas. Without them you get something like snow blindness. Very painful and possiblely damaging. These glasses use special didymium lenses.
Last edited by Gerald C Koch; 07-16-2012 at 01:41 AM. Click to view previous post history.
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