【No “X” Cross on Image】Say goodbye to the "X" cross on images, K&F Concept utilizes cutting-edge technology you're going to say goodbye to variable ND filters common issue on wide-angle lenses.
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Recently, I had the opportunity to try out the K&F Concept 49mm ND4-64 (2-6 Stops) ND Lens Filter Variable & CPL Polarizers Filter from their Nano-X Series. This impressive 2-in-1 filter offers not only a neutral density (ND) filter but also a polarizing (CPL) filter, making it a versatile tool for my photography needs.

One of the standout features of this filter is its ability to say goodbye to the ‘X’ cross on images. K&F Concept has utilized cutting-edge technology to address the common issue with variable ND filters on wide-angle lenses, a feature that I found particularly useful during my use.

The ND filter provides 2-6 stops of light reduction, making it suitable for both cloudy days and extremely bright ones. The CPL filter, on the other hand, removes unwanted glares from non-metallic surfaces and enhances color and contrast a feature that adds depth and vibrancy to my images.

The quality of this filter is evident in its construction. It’s made with imported AGC optical glass and boasts 28 multi-layer coatings, allowing only 0.2% light transmittance. This means it’s not only waterproof but also scratch-resistant, protecting my valued lens. However, it’s important to note that for this 49mm ND filter, the lens cap/hood should be 52mm.

The putter adjustable design frame is another aspect I appreciate about this product. Made of aluminum alloy, the CNC-Non-slip frame has a putter to help easily adjust the stop. There are 5 stops from Min(ND4) to Max (ND64), making it convenient to ensure the ND filter stops.

Lastly, this filter is compatible with all 49mm lenses, but remember to verify your camera’s lens thread size before ordering. All in all, I am impressed with the K&F Concept 49mm ND4-64 (2-6 Stops) ND Lens Filter Variable & CPL Polarizers Filter and would highly recommend it to any photographer looking for a versatile, high-quality filter.

  • Variable ND & CPL filter 2 in 1One filter has the ND and CPL filter features, the nd filter provides 2-6 stops of light reduction needed, suitable for cloudy days and extremely bright days, the CPL filter can remove unwanted glares from a non-metallic surface, and enhance the color and contrast.
  • No X Cross on ImageSay goodbye to the “X” cross on images, K&F Concept utilizes cutting-edge technology you’re going to say goodbye to variable ND filters common issue on wide-angle lenses.
  • Imported AGC GlassMade by importing AGC optical glass, 28 multi-layer coatings, only allows 0.2% light transmittance, waterproof, and scratch-resistant, which could protect your valued lens. For this 49mm ND filter, the lens cap/hood should be 52mm.
  • Putter Adjustable Design FrameFilter frame is made of aluminum alloy, the CNC-Non-slip with a putter to help adjust the stop easily. There are 5 stops from Min(ND4) to Max (ND64) on the frame, convenient to be sure the ND filter stops.
  • NoteThis filter is compatible with all 49mm lenses. Please verify your camera’s lens thread size before ordering. The number beside the “” (diameter) symbol is the lens

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