Verdict
Head-to-head · Best ND Filter Kits

K&F Concept Nano-X Variable ND ND2-400 vs PolarPro Peter McKinnon VND Edition II

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

PolarPro Peter McKinnon VND Edition II comes out ahead by a clear margin (4.0 vs 4.5). The gap is mostly about Video creators who want tactile, eyes-off density control with class-leading image quality — read the strengths below before deciding.

K&F Concept Nano-X Variable ND ND2-400
Ranked #5 in Best ND Filter Kits
K&F Concept Nano-X Variable ND ND2-400
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
PolarPro Peter McKinnon VND Edition II
Higher ratedRanked #3 in Best ND Filter Kits
PolarPro Peter McKinnon VND Edition II
3 sources2 derived$249.99as of Aug 1

Video creators get two things from the PolarPro Peter McKinnon VND Edition II: class-leading image quality and tactile haptic stops you can feel without looking away from the shot. Shotkit rated it Highly Recommended with near-perfect category scores, and TechRadar called it 'pretty much flawless.' The premium price is the main barrier.

Strengths
  • Pronounced haptic feedback at each stop for eyes-off adjustment
  • Hard-stop system eliminates cross-polarization and vignetting
  • Class-leading image quality with no major color shift
Watch-outs
  • Expensive at around $250
  • Occasional minor color inaccuracy correctable in white balance
  • Each version covers only part of the range (need both for full span)

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.

PolarPro Peter McKinnon VND Edition II

The PolarPro VND uses hard stops like the NiSi True Color ND-Vario but adds pronounced haptic feedback the NiSi lacks; its 2-5 stop range matches the NiSi and is narrower than the Hoya Variable Density II, and it is a variable rather than a fixed set like the Cokin Nuances Extreme.

Specs side-by-side

SpecK&F Concept Nano-X Variable ND ND2-400PolarPro Peter McKinnon VND Edition II
TypeVariable ND (screw-in)Variable ND (screw-in)
RangeND2-ND400 (1-9 stops)2-5 stops (ND4-ND32)
GlassImport AGC optical glassFused quartz / Cinema glass
Coating28-layer nano, water/oil-repellentMulti-coated
FrameSlim 7.4mmBrass / aluminum
ControlPutter handle, marked stopsHard stops + haptic feedback
Thread Sizes49-82mm options67-95mm options
MaterialGlass, Optical GlassAluminum
Dimensions3.03"L x 3.03"W3.23"L x 3.23"W
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