6
6 Base Curve - Medium Coverage: Frames with medium coverage and wrap that value style but still perform. This indicates a moderate curvature of the lenses. These lenses offer a good balance between style and function, with reasonable protection from lateral light. Suitable for everyday outdoor activities.
8 Base Curve - Maximum Wrap: This high base curve represents strongly curved lenses that offer maximum lateral protection. Ideal for intense outdoor activities such as fishing, water sports, or driving in bright sunlight. These lenses wrap more closely around the face, protecting against glare and wind from all directions.
B4.25 Base Curve - Flat Style: This base curve represents rather flat lenses that make a fashion statement. Suitable for everyday use.
B6 Base Curve - Medium Coverage: Similar to the normal 6 Base Curve, but with slightly different frame adjustments.
B6D Base Curve - Medium Coverage: Similar to the normal 6 Base Curve, but with digital lens adjustments.
B8D Base Curve - Maximum Wrap: Similar to the normal 8 Base Curve, but with digital lens adjustments.
Key Points:
- A higher base curve means a stronger curvature and therefore more lateral protection.
- Costa uses different base curves to meet the needs of various activities and styles.
- The additions B before the number and D after the number indicate that these involve special frame adjustments (B) and digitally adjusted lenses (D).
