

🎥 Master light like a pro with the K&F Concept Variable ND Filter—your lens’s new best friend!
The K&F CONCEPT 77mm Variable ND Filter (ND2-ND400) features premium Japanese AGC optical glass with 28 multi-layer coatings for superior image clarity. Its unique putter-style frame allows precise, smooth adjustment across 1 to 9 stops, perfect for both photography and videography. Waterproof, oil-proof, and scratch-resistant coatings ensure durability in all conditions, while the ultra-slim 7.4mm frame eliminates vignetting even on ultra-wide lenses. Compatible with all 77mm lenses, this filter is a must-have for professionals seeking versatile, high-quality light control.












| ASIN | B08ZYDZ58V |
| Best Sellers Rank | #7 in Camera Lens Neutral Density Filters |
| Brand | K&F CONCEPT |
| Coating Description | Multi Coating |
| Customer Reviews | 4.6 out of 5 stars 1,633 Reviews |
| Enclosure Material | Glass, Optical Glass |
| Item Dimensions L x W | 3.03"L x 3.03"W |
| Item Height | 0.1 centimeters |
| Item Weight | 80 Grams |
| Manufacturer | Shenzhen Zhuoer Photograph |
| Photo Filter Factor | 400 x |
| Photo Filter Size | 77 Millimeters |
| Special Effect | Neutral Density |
| Thread Size | 77 Millimeters |
| Water Resistance Level | Waterproof |
A**S
Great Quality
ND filter works perfectly! Used it for my 16mm lens (24mm full frame equivalent) on a aps-c camera. Zero vignetting all the way down to the last stop. Only shows X when you go past the ND400. Even directly only ND400 there is zero vignetting. Perfect for my Sony ZV-E10 II. Highly recommended!
N**A
Nice Filter
Great customer service - nice filter!
M**Y
Excellent, Resonably Priced, Filters
K&F filters are fantastic, work as promised with zero distortion. Made with Japanese optical glass. Reasonably priced filters that are excellent!
H**N
Am disappointed in this filter
UPDATED REVIEW - Although I was disappointed in this filter, I have to say that the customer service is absolutely incredible in wanting to make things right by either refunding or giving me the option to choose another product. Anna from Customer service responded very quickly to my issue. Thank you for standing by your products! I really like the putter - it's so much easier to manipulate the filter. I am disappointed in the color cast and dark X type thing at certain times - not sure why this happens...
G**G
If you plan to use this with wide angle lenses, keep looking.
Didn’t do my homework, not a good choice for wide angle work as it is unusable at the darker end of the scale…the dreaded x pattern shows up. Even for situations I used it I felt like I gave up too much image quality. K&F may make some fine filters, this one was not a fit for me. Update: I have upgraded the rating from 2 stars to 4 due to excellent customer service on the part of K&F. This filter still is not a good fit for a wide angle lens, but most variable ND filters apparently are not. I will likely try another K&F product if a future need arises due to the quality of customer service.
M**T
MUST HAVE
Super durable, nicely presented, and has been used for a lot of shoots.
M**N
1000/10 lo recomiendo altamente, amo mucho este filtro
Amo este filtro, puedes regular la graduación de ND y al no usar HSS este es la solución perfecta y la calidad de imagen sigue siendo superior, no quita ni un poco la calidad de imagen y es mi favorito en fotos de atardecer que amo hacer Ejemplo en mis fotos de como se oscurece y aclara
C**A
Buena calidad
Buena construcción
Trustpilot
2 days ago
2 months ago