Fotodiox, Inc. USA

Fotodiox Pro 6.6x8.5" Neutral Density Reverse Gradient .6 (Grad-ND4, 2-Stop) Soft Edge Filter (works with WonderPana 66 & FreeArc Systems)

Fotodiox Pro 6.6x8.5" Neutral Density Reverse Gradient .6 (Grad-ND4, 2-Stop) - Main image
Fotodiox Pro 6.6x8.5" Neutral Density Reverse Gradient .6 (Grad-ND4, 2-Stop) - View 2
$139.97 $199.95 In stock

Category: WonderPana

  • Description
  • Specs
  • Compatibility
  • Notes

Product Highlights:

  • • Provides a 2 to 3-stop reduction of light in selective areas
  • • Soft-edged line of transition between the dense and clear areas
  • • Filter does not affect the overall coloration of the image
  • • Constructed from optical polycarbonate (CR39) for clarity and durability
  • • Other WP66 Filters Include: 0.6 & 0.9 in Hard & Soft Edges as well as colored grads
  • • Limited 2-Year Manufacturer Warranty

    • Fotodiox Pro 6.6"x8.5" filters are the strongest in the industry at 2mm thick. Fotodiox 6.6x8.5" filters are practically unbreakable and are guaranteed spectrally neutral to within + or – 3 in the a and b channels of the lab color space. Reverse grad filters are primarily used for light reduction in skylines of landscape shots. The reverse grad is a vital tool if you are looking to take sunrise or sunset shots. This is because the ND part of the grad is upside down, with the darkest area is near the center, graduating to approximately one f-stop lighter on the top part of the filter and the lower part of the filter is clear to allow balanced exposure with the foreground. This ensures the maximum light reduction when the sun is at or near the horizon. This filter is made by Fotodiox Pro specifically for the WonderPana 66 & FreeArc Systems.

    Back to Highlights

    Construction Premium Grade Optical Polycarbonate (CR39)
    Density +2 Stop EV Value (at Densest Edge)
    Product Dimensions 6.6 x 8.5 x 0.08 in (16.8 x 21.6 x 0.2 cm)
    0.3 lb (4.1 oz)
    Shipping Dimensions 11 x 14 x 1.5 in (28 x 35.6 x 3.8 cm)
    0.8 lb (12 oz)
    Manufacturer Fotodiox Inc.
    Warranty Limited 24-Months

    All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.

  • • WonderPana 145 & FreeArc Filter Holder Systems (145mm/168x216mm)
  • • The filter will not fit directly on any lens, a WonderPana FreeArc Filter Holder Systems (168x216mm) is required for use.
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    Customer Reviews (4.8 / 5 · 5 reviews)

    Mia F. ★★★★★

    The soft-edge transition on this filter is perfect for my landscape shots—it darkens the sky naturally without a harsh line across the frame. Slips right into my WonderPana holder and feels solidly built. Really cleaned up my sunrise exposures.

    Evelyn C. ★★★★★

    I was a bit worried about banding with a reverse grad, but this one handles the transition smoothly even with a 2-stop difference. It fit perfectly into my holder and cut the bright sky down without making the foreground look unnatural.

    Amelia ★★★★★

    I was worried about harsh lines in my seascapes, but this filter’s soft edge blends the dark and clear zones seamlessly for a natural look. It cuts two stops of light on the sky without affecting the foreground too much—exactly what I needed for sunrise shots.

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