K&F Concept
K&F Concept Nano-X Variable ND Filter (ND2-ND400)
$93.99Cheaper
Released 2023
Best Nd Filters · head-to-head
K&F Concept Nano-X Variable ND Filter (ND2-ND400) vs Tiffen Variable ND Filter
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.
Tiffen
Tiffen Variable ND Filter
$109
Which is better: the K&F Concept Nano-X Variable ND Filter (ND2-ND400) or Tiffen Variable ND Filter?
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.
See K&F Concept Nano-X Variable ND Filter (ND2-ND400) on Amazon See Tiffen Variable ND Filter on Amazon
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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) | Tiffen Variable ND Filter |
|---|---|---|
| US price | $93.99 | $109 |
| Brand | K&F Concept | Tiffen |
| Released | 2023 | — |
| Filter type | variable | variable |
| Density range stops | 1 to 9 (ND2-ND400) | 2 to 8 (ND 0.6 to ND 2.4) |
| Common thread sizes (mm) | 37-105 (49, 52, 55, 58, 62, 67, 72, 77, 82 common) | 52, 58, 62, 67, 72, 77, 82, 95 |
| Coating | 28-layer multi-coating (nano, waterproof/oil-proof) | ColorCore glass construction (no nano/MRC branding stated) |
| Color cast note | No hard-stop detents; an X-pattern/color cast can appear if rotated past the effective range | No manufacturer color-neutrality claim published; independent reviews note some warm cast at the high end of rotation |
| Front filter thread | Yes | — |
| Magnetic | No | No |
| Glass type | Japanese AGC optical glass | optical glass (Tiffen ColorCore) |
Sources — K&F Concept Nano-X Variable ND Filter (ND2-ND400): kentfaith.com (verified 2026-08-16). Tiffen Variable ND Filter: tiffen.com (verified 2026-08-16).
What's the difference between the K&F Concept Nano-X Variable ND Filter (ND2-ND400) and Tiffen Variable ND Filter?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Density range stops: K&F Concept Nano-X Variable ND Filter (ND2-ND400) 1 to 9 (ND2-ND400) vs Tiffen Variable ND Filter 2 to 8 (ND 0.6 to ND 2.4)
- 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 Tiffen Variable ND Filter 52, 58, 62, 67, 72, 77, 82, 95
- Coating: K&F Concept Nano-X Variable ND Filter (ND2-ND400) 28-layer multi-coating (nano, waterproof/oil-proof) vs Tiffen Variable ND Filter ColorCore glass construction (no nano/MRC branding stated)
- 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 Tiffen Variable ND Filter No manufacturer color-neutrality claim published; independent reviews note some warm cast at the high end of rotation
- Glass type: K&F Concept Nano-X Variable ND Filter (ND2-ND400) Japanese AGC optical glass vs Tiffen Variable ND Filter optical glass (Tiffen ColorCore)