【Self-Lock Frame, No 'X’ cross】Say goodbye to the "X" cross on images, K&F Concept utilizes cutting-edge technology to perfectly avoid the common "X" issue of variable nd filter on wide-angle and telephoto lenses.
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I recently had the pleasure of trying out the K&F Concept 55mm Variable ND Lens Filter, and I must say, I was impressed! The first thing that caught my eye was the absence of the pesky ‘X’ cross on my images, a common issue with variable ND filters. K&F Concept has truly outdone themselves in this aspect, thanks to their cutting-edge technology.

The filter itself is made from imported AGC glass, a first-class material that ensures no color cast and maintains the image clarity and sharpness. This was evident in the photos I took; the colors were balanced beautifully, and the details were crisp and clear.

Another feature I found particularly useful was the ultra-slim frame design. This minimizes vignetting, even on wide-angle lenses, which is a game-changer for photographers like me who love to capture landscapes. The CNC-non-slip design also makes installing and removing the filter a breeze.

Lastly, the 28 multi-layer nanometer coatings provide excellent waterproof, scratch-resistant, and anti-glaring properties. This protective layer ensures that my valued lens remains in pristine condition while still delivering high-quality photos. Overall, I’m very satisfied with this purchase.

  • Imported AGC GlassVariable nd filter made by importing AGC glass, first-class filter material balancing the color batter, with no color cast and no effect for the image clarity and sharpness.
  • Self-Lock Frame, No ‘X crossSay goodbye to the “X” cross on images, K&F Concept utilizes cutting-edge technology to perfectly avoid the common “X” issue of variable nd filter on wide-angle and telephoto lenses.
  • NANOTECK&F Concept optical engineers developed multi-layer nanometer coatings (total of 28), waterproof, scratch-resistant, and anti-glaring, protecting the valued lens and presenting high-quality photos.
  • Ultra Slim Frame Avoid Vignetting7.4mm Ultra-slim frame design utmost avoid the wide-angle vignetting (support 28mm focal length no vignetting). CNC-non-slip design helps install and remove the filter easily.
  • NOTEThis filter kit is compatible with all 55mm lenses. Please verify your camera’s lens thread size before ordering. The number is always preceded by a “” (diameter) symbol. For the 55mm nd filter, the lens cap/hood size should be 58mm.

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