K&F Concept Nano-X Variable ND (67mm)
The Nano-X Variable ND is a 67mm filter giving 1-5 stops (ND2-ND32), an enthusiast-tier pick for video exposure control on 67mm lenses like the Tamron 28-75 G2. It's a practical way to hold shutter angle in bright light on that thread size. For critical color-accurate work, premium VNDs are the better choice.
Scores
BreakdownHideOverall73±3Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions; excluded here: value (volatile or unpriced), compatibility (no ecosystem dimension).
Scores
BreakdownHideCaliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions; excluded here: value (volatile or unpriced), compatibility (no ecosystem dimension).
The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.
How each score is computed: our scoring methodology.
Specifications
| Spec | Value | Verification |
|---|---|---|
| filter type | Variable NdSourced | Sourced |
| thread (mm) | 67Sourced | Sourced |
| stops | 1-5 stops (ND2-ND32)Sourced | Sourced |
3/3 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.
Verdict
Best for
- Video exposure control on 67mm glass (Tamron 28-75 G2 etc.)
Who should skip this
- Critical color work — premium VNDs exist
Where to buy
Prices are a guide and can change — confirm the current price on the retailer's site before buying.
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Compatibility
No platform-specific compatibility requirements — this works in any standard photo / video setup.
Upgrade path
A solid enthusiast pick that carries into higher-tier setups as your needs grow.