Quote:
Originally Posted by SaltyShaw
How can you tell? I've been wondering about this
Go 580s! Not sure if I have glass or plass lens
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580P are CR39 (PLASTIC) and should be on lens.
that is what im worried about is the weight. I just ordered prescription lenes for my costas and they can only come in the 580 so im worried about the weight and how they'll hold up vers the plastic lenses.
Always go with glass lens, durability,optic quality can't be matched by any plastic lens. The 580's are clearer and sharper contrast than any 400 series lens. My 400's are relagated to mowing the yard now.