Head to head
Tiffen Variable ND vs K&F Nano-X Variable ND (2027)
Head-to-head: Tiffen Variable ND versus K&F Concept Nano-X on range, glass, colour behaviour and value for learning video shooters.
Tiffen Variable ND Filter
The long-running ND2 to ND400 variable from the cinema filter house.
- Type: Variable ND
- Density: ND2 to ND400, approx. 1 to 8 stops
K&F Concept Nano-X Variable ND2-ND400
The budget variable ND with Japanese glass and 28-layer nano coating.
- Type: Variable ND
- Density: ND2 to ND400, approx. 1 to 9 stops adjustable
Our recommendation
Buy the Tiffen for cinema glass heritage and indexed markings at a still-modest price. Buy the Nano-X to minimise spend while learning, with Japanese glass that punches above the budget class. Both teach the same craft; the Tiffen keeps its manners slightly longer into deep density.
Glass and coatings
Tiffen's ColourCore glass comes from a cinema filter lineage with consistent quality control. K&F's Japanese glass with nano coatings is the budget overachiever, with cleanability and flare manners that surprise at the price. Neither matches premium variables at maximum density.
Markings and handling
Tiffen's indexed stop markings help learners log and repeat settings, a teaching feature. The Nano-X rotates smoothly with clear density references and a slimmer profile. Both lack hard stops, so the X-cross discipline is the shooter's job on each.
Price and availability
The Nano-X undercuts the Tiffen meaningfully in most thread sizes and bundles a better case. Tiffen counters with near-universal retail availability and decades of rental-house familiarity.
Choose Tiffen Variable ND Filter if…
- You want indexed stops to learn exposure repeatably
- You value cinema brand quality control
- You may rent or borrow matching filters for productions
Choose K&F Concept Nano-X Variable ND2-ND400 if…
- Budget is the primary constraint
- You want the best case and coating value per dollar
- You plan to upgrade to a premium variable within a year
Questions, answered
Which has less colour cast?
The Tiffen, marginally, at comparable deep densities. Both are honest in their first two thirds of range, which is where learners should live anyway.
Are either suitable for paid work?
For moderate densities and forgiving deliverables, yes. For colour-critical paid video, the premium hard-stop filters in this guide are the professional answer.
Do both fit lens hoods?
Variable NDs are wider than standard filters; petal hoods often will not fit over them. Most shooters work hoodless with a hand or flag for flare on bright ND days.