K&F Concept
K&F Concept Nano-X Variable ND Filter (ND2-ND400)
$93.99
Released 2023
Best Nd Filters · head-to-head
K&F Concept Nano-X Variable ND Filter (ND2-ND400) vs Hoya ProND EX 1000 (ND 3.0, 10-Stop)
A sourced, side-by-side comparison. Hoya ProND EX 1000 (ND 3.0, 10-Stop) is cheaper at $88.9. Every spec and price links to its source.
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Hoya
Hoya ProND EX 1000 (ND 3.0, 10-Stop)
$88.9Cheaper
Which is better: the K&F Concept Nano-X Variable ND Filter (ND2-ND400) or Hoya ProND EX 1000 (ND 3.0, 10-Stop)?
On the specs we track, they're closely matched. The Hoya ProND EX 1000 (ND 3.0, 10-Stop) is the cheaper at $88.9.
See K&F Concept Nano-X Variable ND Filter (ND2-ND400) on Amazon See Hoya ProND EX 1000 (ND 3.0, 10-Stop) on Amazon
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | K&F Concept Nano-X Variable ND Filter (ND2-ND400) | Hoya ProND EX 1000 (ND 3.0, 10-Stop) |
|---|---|---|
| US price | $93.99 | $88.9 |
| Brand | K&F Concept | Hoya |
| Released | 2023 | — |
| Filter type | variable | fixed |
| Density range stops | 1 to 9 (ND2-ND400) | 10 |
| Common thread sizes (mm) | 37-105 (49, 52, 55, 58, 62, 67, 72, 77, 82 common) | 49-82 |
| Coating | 28-layer multi-coating (nano, waterproof/oil-proof) | ACCU-ND multi-coating |
| Color cast note | No hard-stop detents; an X-pattern/color cast can appear if rotated past the effective range | HOYA's ACCU-ND technology is designed to equally reduce visible and IR light to prevent the color shift seen on cheaper ND filters |
| Front filter thread | Yes | Yes |
| Magnetic | No | No |
| Glass type | Japanese AGC optical glass | clear optical glass, aluminum frame |
Sources — K&F Concept Nano-X Variable ND Filter (ND2-ND400): kentfaith.com (verified 2026-08-16). Hoya ProND EX 1000 (ND 3.0, 10-Stop): hoyafilter.com (verified 2026-08-16).
What's the difference between the K&F Concept Nano-X Variable ND Filter (ND2-ND400) and Hoya ProND EX 1000 (ND 3.0, 10-Stop)?
Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.
- Filter type: K&F Concept Nano-X Variable ND Filter (ND2-ND400) variable vs Hoya ProND EX 1000 (ND 3.0, 10-Stop) fixed
- Density range stops: K&F Concept Nano-X Variable ND Filter (ND2-ND400) 1 to 9 (ND2-ND400) vs Hoya ProND EX 1000 (ND 3.0, 10-Stop) 10
- Common thread sizes (mm): K&F Concept Nano-X Variable ND Filter (ND2-ND400) 37-105 (49, 52, 55, 58, 62, 67, 72, 77, 82 common) vs Hoya ProND EX 1000 (ND 3.0, 10-Stop) 49-82
- Coating: K&F Concept Nano-X Variable ND Filter (ND2-ND400) 28-layer multi-coating (nano, waterproof/oil-proof) vs Hoya ProND EX 1000 (ND 3.0, 10-Stop) ACCU-ND multi-coating
- Color cast note: K&F Concept Nano-X Variable ND Filter (ND2-ND400) No hard-stop detents; an X-pattern/color cast can appear if rotated past the effective range vs Hoya ProND EX 1000 (ND 3.0, 10-Stop) HOYA's ACCU-ND technology is designed to equally reduce visible and IR light to prevent the color shift seen on cheaper ND filters
- Glass type: K&F Concept Nano-X Variable ND Filter (ND2-ND400) Japanese AGC optical glass vs Hoya ProND EX 1000 (ND 3.0, 10-Stop) clear optical glass, aluminum frame