Head-to-head · Best ND Filter Kits

K&F Concept Nano-X Variable ND ND2-400 vs NiSi True Color ND-Vario 1-5 Stop Pro Nano

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

NiSi True Color ND-Vario 1-5 Stop Pro Nano comes out ahead by a clear margin (4.0 vs 4.7). The gap is mostly about Professional videographers and photographers who prioritize color accuracy and repeatable stops — read the strengths below before deciding.

Ranked #5 in Best ND Filter Kits

K&F Concept Nano-X Variable ND ND2-400

4.0

3 sources2 derived$80.99as of Aug 1

At around $90 for a wide 1-9 stop variable ND, the K&F Concept Nano-X Variable ND ND2-400 is the value pick, and reviewers agree it gets you most of the capability of pricier filters. Digital Camera World scored it about 3.75/5, praising the 28-layer nanocoating and handling while noting it softens detail slightly. Photography Life and Digital Photography School both found the color cast minor and easily corrected.

Strengths

— Excellent value, far cheaper than premium variable NDs
— Wide ND2-ND400 (1-9 stop) range in one filter
— Putter-style adjustment handle with stops marked on the frame

Watch-outs

— Slight softening of detail and minor warm color shift
— X-pattern cross-polarization at the highest settings
— No hard stops, so density selection is less repeatable than premium rivals

$80.99 · Check Price on Amazon Full review →

Higher ratedRanked #1 in Best ND Filter Kits

NiSi True Color ND-Vario 1-5 Stop Pro Nano

4.7

3 sources$225as of Aug 1

Class-leading color accuracy and hard stops that head off the dreaded X-pattern put the NiSi True Color ND-Vario 1-5 Stop Pro Nano at the top for professionals. Digital Camera World named it 'the best variable ND for professional users,' Camera Jabber gave it 5/5, and Amateur Photographer praised its near-perfect color. You pay for it, and the 1-5 stop range is narrower than some rivals.

Strengths

— Exceptional color accuracy thanks to True Color coating
— Hard stops at 1 and 5 stops prevent over-rotation and X-pattern
— Screw-in metal handle gives smooth, repeatable video density pulls

Watch-outs

— Among the more expensive variable ND filters
— Narrower 1-5 stop range than the Hoya's 1.5-9 stops
— Slight density unevenness beyond 4 stops on flat surfaces

$225 · Check Price on Amazon Full review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

K&F Concept Nano-X Variable ND ND2-400

The K&F Concept Nano-X matches the Hoya Variable Density II's wide 1-9 stop range at a much lower price, but lacks the hard stops of the NiSi True Color ND-Vario and PolarPro VND and softens detail slightly more; it is a variable rather than a fixed set like the Cokin Nuances Extreme.

NiSi True Color ND-Vario 1-5 Stop Pro Nano

The NiSi True Color ND-Vario uses hard stops at 1 and 5 stops like the PolarPro VND, giving more repeatable density than the continuous-rotation Hoya Variable Density II, but covers a narrower range than the Hoya and is not a fixed set like the Cokin Nuances Extreme.

Specs side-by-side

Spec	K&F Concept Nano-X Variable ND ND2-400	NiSi True Color ND-Vario 1-5 Stop Pro Nano
Type	Variable ND (screw-in)	Variable ND (screw-in)
Range	ND2-ND400 (1-9 stops)	1-5 stops (ND2-ND32)
Glass	Import AGC optical glass	Ultra-clarity optical glass
Coating	28-layer nano, water/oil-repellent	True Color, nano, waterproof
Frame	Slim 7.4mm	—
Control	Putter handle, marked stops	Screw-in metal handle, hard stops
Thread Sizes	49-82mm options	40.5-95mm options
Material	Glass, Optical Glass	Optical glass
Dimensions	3.03"L x 3.03"W	3.03"L x 3.03"W

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