PolarPro QuartzLine Filter 77 mm ND64

6-Stop Neutral Density Filter for photographers and cinematographers looking for full shutter control and zero image degradation

• 99.9% Pure Fused Quartz glass element with a base refractive Index of only 1.46 for razor sharp images
• 6-Stop Neutral Density Filter for photographers and cinematographers looking for full shutter control and zero image degradation
• 77mm Rugged Brass Frame / New optical coating technologies achieve near perfect target transmission while maintaining a Hyper Neutral Color profile
• Abrasion Resistant and Hydrophobic coatings increase surface hardness and make cleaning easy
• Includes QuartzLine Filter, Soft Filter Case, Hard Filter Case, Microfiber Cloth, and a Lifetime Warranty