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  • PolarPro QuartzLine Circular Polarizer (CP)

    PolarPro

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    Regular price $60.00
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    QuartzLine filters are made of 99.9% pure fused-quartz glass for unrivaled durability and optical clarity. These single-lens element filters produce a very low refractive index of just 1.46 and offer outstanding temperature stability. Combined with an over-engineered brass frame, QuartzLine filters thread on smoothly and are built to withstand your most rugged adventures.

    • Fused Quartz Glass Element - Resolves up to 400MP sensors
    • Brass Frame - Smooth threading and increased durability
    • Perfect Color Neutrality - New coating process for zero color shift
    • 16 Coating Layers - Anti-scratch / anti-oil / hydrophobic coatings
    • Adventure Assurance™ - Be satisfied with your PolarPro gear throughout your adventures or your money back.

    TECH SPECS

    AVAILABLE THREAD FRAME MATERIAL GLASS MATERIAL DIAMETER ND & UV DIAMETER ND / PL DEPTH ND & UV DEPTH ND / PL WEIGHT ND & UV WEIGHT PL & ND
    67mm Brass Fused Quartz 70mm 70.5mm 6.5mm 7.5mm 29g 32.9g
    77mm Brass Fused Quartz 80mm 80.5mm 6.5mm 7.5mm 37g 38.8g
    82mm Brass Fused Quartz 85mm 85.5mm 6.5mm 7.5mm 37.5g

    43.5g


    FILTER TYPE STOP REDUCTION OPTICAL DENSITY TRANSMISSION %
    UV 0 0.0 99.9%
    CP 1.6 0.4 33%
    ND8 3 0.9 12.5%
    ND8/PL 3 0.9 12.5%
    ND16 4 1.2 6.25%
    ND16/PL 4 1.2 6.25%
    ND64 6 1.8 1.5%
    ND64/PL 6 1.8 1.5%
    ND1000 10 3.0 0.1%
    ND1000/PL 10 3.0 0.1%
    ND100K 15 4.5 0.002%

    SKU 77-CP, 82-CP