POLARPRO QuartzLine CP Filter for 77mm lenses

• Filters of the highest quality.
• Durable glass
• QuartzLine: B270: Plastic
• Refractive index: 1.456: 1.523: 1.58
• Surface reflectance: 0.034: 0.042: 0.056
• Stress-relief temperature: 1120°C: 510°C: 463°C
• Robust quartz glass

Low reflective surface resistant to extreme temperatures and a refractive index of only 1.456.

• Different types, many possibilities

Handmade 4-part frame, allows smoother filter adjustment than a frame made of aluminum

• Compatibility: Filters
• Net weight: 37
• Box width: 12,10
• Box height: 12,40
• Box length: 3,10
• Gross weight: 165
• Lens (mm): 77