NiSi
NiSi SWIFT True Color ND-VARIO Pro Nano (1-5 Stop)
$245
Released 2023
Best Nd Filters · head-to-head
A sourced, side-by-side comparison. K&F Concept Nano-X Variable ND Filter (ND2-ND400) is cheaper at $93.99. Every spec and price links to its source.
NiSi
$245
Released 2023
K&F Concept
$93.99Cheaper
Released 2023
On the specs we track, they're closely matched. The K&F Concept Nano-X Variable ND Filter (ND2-ND400) is the cheaper at $93.99.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $245 | $93.99 |
| Brand | NiSi | K&F Concept |
| Released | 2023 | 2023 |
| Filter type | variable | variable |
| Density range stops | 1 to 5 (ND2-ND32) | 1 to 9 (ND2-ND400) |
| Common thread sizes (mm) | 40.5-105 | 37-105 (49, 52, 55, 58, 62, 67, 72, 77, 82 common) |
| Coating | NiSi Nano Coating (waterproof, anti-reflective, smudge-proof) | 28-layer multi-coating (nano, waterproof/oil-proof) |
| Color cast note | Marketed as "True Color" - engineered to avoid the blue/magenta color shift typical of variable ND filters | No hard-stop detents; an X-pattern/color cast can appear if rotated past the effective range |
| Front filter thread | Yes | Yes |
| Magnetic | No | No |
| Glass type | high-definition optical glass | Japanese AGC optical glass |
Sources — NiSi SWIFT True Color ND-VARIO Pro Nano (1-5 Stop): nisiopticsusa.com (verified 2026-08-16). K&F Concept Nano-X Variable ND Filter (ND2-ND400): kentfaith.com (verified 2026-08-16).
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.