How do I know if my Costa lenses are plastic or glass?
How do I know if my Costa lenses are plastic or glass?
All you need to do is tap a lens against your teeth, a tool that's always available. If the lenses make a soft ringing sound, they are more likely to be glass. If they make a soft *thunk*, then they are definitely plastic.
How can I tell if my Costa glasses are glass?
Whether you have glass or polycarbonate lenses, they will always have a “580” or “580P” etched into the lens. Lenses that fail to have this etching on them are not real Costa lenses. Lenses on real Costas will always have the 580 or 580P etched into the lens.2021-06-18
Are all Costa lenses etched?
Whether you have glass or polycarbonate lenses, they will always have a “580” or “580P” etched into the lens. Lenses that fail to have this etching on them are not real Costa lenses. Lenses on real Costas will always have the 580 or 580P etched into the lens.2021-06-18
What is difference between Costa glass and plastic?
Glass lenses offer superior clarity and scratch resistance, but are usually heavier than plastic lenses. Plastic lenses are lighter and more comfortable to wear all day long, but are much more vulnerable to scratches.
Do Costa sunglasses have glass lenses?
Costa makes 580 lenses: available in glass or polycarbonate as indicated by a G (glass) or P (polycarbonate) after the model number. Glass offers the greatest clarity and resists scratching better than polycarbonate lenses. But polycarbonate lenses are lighter weight, resist impact, and they're more durable.