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K&F CONCEPT

K&F Concept 40.5mm Neutral Density Filter, 40.5mm Slim Variable Fader ND Filter Adjustable ND2 to ND400 Filter + Cleaning Cloth

  • Based on 12,531 reviews
Condition: New
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Availability: 15 left in stock
Fulfilled by Amazon
Arrives Friday, Aug 21
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Size: 40.5MM


Features

  • Import Optical GlassCrafted from premium AGC optical glass with 8 multi-layer coatings, this ND filter reduces reflections and glare, ensuring superior image quality.
  • Versatile Light ControlWith 1 to 9 stops of adjustable light reduction and 360-degree rotation for precise dimming settings, this filter is perfect for diverse scenarios. (Note: Max stops may cause a cross-pattern effect, commonly known as an "X black cross." This phenomenon is natural and temporary, occurring due to the adjustable ND filter's interaction with specific lenses and focal lengths.
  • Glare-Free SurfaceTreated with an oxidized sandblasting process, this filter prevents unwanted stray light and minimizes unnecessary reflections on the metal surface.
  • Slim and SecureAt a mere 7.4mm thickness, the CNC-patterned design ensures enhanced friction while rotating, making it easy to attach/detach lenses and accessories anytime, anywhere.
  • Compatibility NoteThis ND filter suits all 40.5mm lenses. Check your camera's lens thread size (usually beside a "" diameter symbol) before ordering. Additionally, a 43mm lens cap is required for this 40.5mm variable ND filter.

Description

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Brand: K&F CONCEPT


Material: Optical Glasses,Resin


Photo Filter Thread Size: 40.5 Millimeters


Coating Description: Multi Coating


Photo Filter Effect Type: Neutral Density


Water Resistance Level: Not Water Resistant


Product Dimensions: 1.59"L x 1.59"W


Photo Filter Size: 40.5 Millimeters


UPC:


Number of Items: 1


Thread Size: 40.5 Millimeters


Coating Description: Multi Coating


Special Effect: Neutral Density


Water Resistance Level: Not Water Resistant


Enclosure Material: Optical Glasses,Resin


Has Self-Timer: No


Compatible Devices: Cameras with 40.5mm lens thread size


Audio Recording: No


Media Type: ProductImage


Screen Size: 40.5 Millimeters


Item Dimensions L x W: 1.59"L x 1.59"W


Photo Filter Size: 40.5 Millimeters


Item Weight: 0.01 Ounces


Brand: K&F CONCEPT


UPC: 700424384280


Manufacturer Part Number: SKU.0885V1


Set Name: K&F Concept 40.5mm Neutral Density Filter Set


Unit Count: 1.0 Count


Model Number: AMSKU0885


Manufacturer: Shenzhen Zhuoer Photograph


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Great item - especially for the price
Size: 82MM
Review Image by Amanda R. Amanda R.
Review Image by Amanda R. Amanda R.
I've been very impressed with this item for the past 2ish years. It's been a durable design at a very affordable price. It fulfills everything that it said it would and is easy to install and use. My images are still very clear and not cloudy as I use the filter. It makes a huge difference in my image using this filter to help reduce the harsh light coming into my camera. There is a slight vignette on the image, but not drastically noticeable. The only downside is the lack of gauges to keep track of what stop the filter is at. It requires you to watch the LCD screen as you turn the knob on the filter. Still happy with the product, but wish there were numbers on the filter. Overall, highly recommend, especially for the price! ... show more
Reviewed in the United States on July 31, 2025 by Amanda R. Amanda R.
    • A Quality Product at an Affordable Prince
Size: 82MM
A high quality variable ND filter lenses constructed from metal with excellent clarity and ND reduction. My only complaint is that I wish the indexing mark on the lens to show what your current setting is at was a bit more pronounced, but as is, it is more than functional.
Reviewed in the United States on November 9, 2025 by Jaden Marcotte
    • Excellent Quality ND Filter for Professional Results
Size: 52 millimeter
This ND filter is a fantastic addition to my photography gear! Made from high-quality AGC optical glass with 8 multi-layer coatings, it really reduces reflections and glare, resulting in crystal-clear images. The 1-9 stop light adjustment is incredibly versatile, perfect for everything from bright daylight shots to more controlled, low-light scenes. The 360-degree rotation offers precise control over the light reduction, although, at the highest stops, I did notice a faint cross-pattern ("X" effect), which is typical for adjustable ND filters on some lenses. The filter itself is sleek and slim, just 7.4mm thick, and the CNC-patterned edge provides great grip, making it super easy to attach or adjust quickly. I love the anti-glare finish, which minimizes stray reflections, especially in challenging lighting. One thing to note: you’ll need a 55mm lens cap for this 52mm filter, but that’s easy to work around. Overall, it’s an impressive ND filter with outstanding performance and durability. Highly recommend it to anyone looking to improve their outdoor and landscape photography! ... show more
Reviewed in the United States on October 28, 2024 by Really like it so far! Will be purchasing again!
    • Overall a great filter but experiencing some lens flares
Size: 82MM
For the price this filter is well made and gets the job done. The step downs are perfect increments for my needs. My only issue is that at times I get 1-2 green flare spots on my image, especially in really bright sun. Tends to ruin the image unless able to use AI to remove. I have cleaned the lens and filter repeatedly so it definitely appears to be a filter issue. Also impossible to put the lens hood back on over the filter which might just offer enough shade to prevent the flares. ... show more
Reviewed in the United States on August 24, 2025 by Steven W
    • Excellent Quality for Photography and Videography!
Size: 67MM
The K&F Concept 67mm Variable ND2-ND400 Filter is an outstanding addition to my camera gear! It provides excellent control over exposure, allowing me to shoot in bright conditions while maintaining proper image quality. The filter is well-built, easy to adjust, and produces smooth, even results without any noticeable color shifts. Whether you’re a photographer or videographer, this filter is a must-have for achieving great shots in varying light conditions. Highly recommend! ... show more
Reviewed in the United States on March 16, 2025 by Perfect Cents
    • Works great, fits perfectly on R50 kit lens
Size: 49MM
Works great! Fit perfectly on the Canon R50 kit lens. Used it to take long exposure shots of moving water between 1 and 30 seconds. They turned out fantastic. It slides easy to adjust the effect. Not much else to say. Was very happy with the results.
Reviewed in the United States on September 21, 2025 by Joe Cool
    • An outdoor shooting must-have.
Size: 67MM
Review Image by Ethan M. Ethan M.
Perfect fit on my sigma 24-70. Fantastic and durable build quality. The adjustments on the filter are smooth, precise, and FAST. Shooting outdoor video calls for quick adjustments - and this filter makes it happen. It’s light, and has a way of making it seem like it was a part of the original lens design. I get beautiful bokeh with my wide open aperture, and the filter preserves the stunning lens flares from the natural sunlight. For the price - the return off of this filter is undeniable. CINEMATIC. ... show more
Reviewed in the United States on September 13, 2025 by Ethan M. Ethan M.
    • Expensive hanger.
Size: 43MM
Budget banger.
Reviewed in the United States on October 24, 2025 by Dan

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