Video summary

I Tried Every Variable ND Filter from $25-$499: Here are the Winners

Main summary

Key takeaways

Product Review

Product reviewed

A large shootout of variable ND (neutral density) filters, testing 14 models priced roughly $25–$499 (and some also support higher-stop ranges). The video evaluates:

  • Color cast
  • Sharpness/detail
  • Vignette / X-pattern (cross pattern)
  • Flare / glare
  • Ergonomics

Key takeaways (what the video claims)

  • You don’t necessarily need to spend a lot. Several cheaper filters perform “surprisingly close” to the expensive ones on key image-quality metrics.
  • Fixed ND systems can outperform variable NDs optically, but variable NDs win for convenience (twist-to-adjust vs swapping filters).
  • Variable ND filters have typical trade-offs, including polarization behavior and potential X-pattern/corner darkening (vignetting) at wide angles and high stop settings.

Variable ND vs fixed ND: what’s being compared

Variable ND filter behavior

  • Variable NDs are made from two crossed polarizing elements.
  • Turning the ring changes how much light is blocked.

Side effects:

  • Can introduce polarization changes (blocking reflections/glare depending on ring position).
  • At certain settings, may cause cross/X pattern and/or dark corners/heavy vignette.

Why ND filters exist (context)

ND filters are described as “sunglasses for your camera,” helping you use slower shutter speeds without overexposure—useful for:

  • Video “180 rule” motion blur (shutter ≈ 2× frame rate)
  • Long-exposure photo blur, such as:
    • Clouds and waterfalls
    • Headlight streaks
    • Ghosting people

Testing results & unique points mentioned

1) Color cast performance (Kelvin/tint shifts)

Top performers for color shift:

  • Freewell Matte Box: ~50K shift, +5 tint (described as shockingly good)
  • NiSi True Pro Nano (1–5 stop): ~100K shift, -1 tint
  • “Nearer” Nano range (1–5 stop): ~100K shift, -1 tint
    • Notably: this cheaper filter performed almost identical to an expensive one.

Other notable values:

  • JJC True Color (1–10 stop): ~175K shift, +1 tint

Worst performers mentioned:

  • KN&F Nano K: ~575K shift
  • H&Revo ring: ~350K shift, +8 tint

Unique point: Even “true color” claims aren’t perfect—all filters shift color slightly, but models vary widely.

2) Vignette / X-pattern limits

Problems worsen with:

  • Wider focal lengths (e.g., 15mm is prone to issues)
  • More stop reduction (e.g., maxing out to ~5 stops often breaks usability)

The video emphasizes that filters have “usable stops” depending on:

  • Focal length
  • Stop setting

General comparative summary:

  • 15mm region
    • Often “usable” at low stops (around 1–2 stops)
    • At higher stops (e.g., ~5 stops at 15mm), corner issues/cross artifacts become severe
  • 20mm at ~4 stops
    • 7 Artisans looks great/usable
    • NiSi Pro and JJC look good
    • Some NiSi/H&Revo variants show more cast/darkening but may still be usable depending on the scene
  • 24mm around 4–5 stops
    • Mostly usable
    • 7 Artisans praised as strong even on a budget
    • Some models show corner color cast creeping in at max reductions
  • 35mm at 5 stops
    • Cross-pattern/vignette concerns become much less significant
    • All tested are described as usable at max

3) “Usable range” for 1–9 stop systems

Some variable NDs marketed as 1–9 stop can become unusable at the upper end (example: 24mm and ~8 stops).

Comparisons:

  • JJC True Color uses a magnetic/clip system to switch between ranges (described as usable vs true 1–9 designs)
  • 7 Artisans handles higher stops via a separate component (also described as usable)

Unique point: “1–9” on cheap single-ring systems may effectively behave closer to 1–5 or 1–6 usable stops, not “true” continuous excellence up to 9.

4) Sharpness/detail impact

  • Shots were taken across 14 filters at 50mm on a 33MP sensor
  • Inspection went up to ~400–500% zoom
  • Conclusion: no meaningful sharpness/detail difference in real-world terms

Recommendation: don’t choose based on sharpness—the differences are negligible.

5) Flare/glare and coatings

Filters can add flare/glare. Several models performed poorly in this category:

  • H&Revo ring: poor
  • JJC True Color: poor
  • KN&F Nano K: poor on other tests but performed well here (a “notably mixed” result)

Best flare performance standouts:

  • Freewell K2
  • NiSi True Color system (both described as better despite being more expensive)

Pros / cons highlighted

Pros of variable ND filters (vs fixed ND)

  • Convenience: twist to adjust instead of swapping multiple fixed filters
  • Supports consistent exposure control during movement/vlogging

Cons / trade-offs specific to variable ND

  • Potential X-pattern/cross pattern and corner darkening at:
    • wide angles + high stop reductions
  • Color shift varies significantly by brand (even “true color” isn’t perfect)
  • Flare/glare/coating performance can differentiate models—some cheaper ones struggle

Ergonomics (general)

Variable ND reduces workflow friction. Some systems also get praise for real-world handling and accessories.

Recommendations / “winners” (specific models mentioned)

Best overall (higher budget)

Freewell K2 (the most expensive in the lineup)

  • Praised for cinema-style versatility and excellent optical quality
  • Includes 1–5 + 6–9 in the system (via included components)
  • Can work as a circular polarizer
  • Supports additional magnetic filters and even rectangular filters using opening flats (for gradient use)

Best by use-case / budget tiers

Top color + performance leaders (vignette/color)

  • 7 Artisans VND True Color (2–5 stop)
    • Repeatedly praised
    • Described as best in vignette performance and strong at corners (even at budget pricing)
  • NiSi Pro True Color (1–5 stop)
    • Presented as an industry standard
    • Strong across tests
  • JJC True Color (1–5 to 6–9 capable system)
    • Strong value and color accuracy
    • Flare/glare performance not among the best

“Top budget recommendations” (with caveats)

  • JJC True Color system
    • Called a top budget pick
    • Strong ergonomics + magnetic switching between 1–5 and 6–9
    • Flare/performance said to be weaker, but color accuracy is good
  • NiSi True Color 1–5 (#1 recommendation if you can afford it)
    • Includes carrying pouch + lens cap
    • Has a hard stop
    • Best-in-line flare/glare performance
    • Best/near-best color performance and cross pattern performance
  • If you don’t need full 9 stops:
    • NiSi Nano 1–5 (marketed as budget)
    • 7 Artisans VND True Color 2–5
      • The video notes pricing shifted since earlier testing, and Seven Artisans may be cheaper than NiSi Nano.

Systems mentioned as “honorable mention” / situational

H&Y Revo ring

  • Flexible fit (fits 67mm to 82mm using a spring-loaded ring style)
  • Biggest downside: strong color shift
  • Suggested use: could work for landscape shooters willing to correct in camera/RAW

Pricing / value points

  • Tested price range: $25 to $499
  • Paying more didn’t guarantee better performance.

Value standouts described:

  • 7 Artisans: “surprisingly close,” about half the price of NiSi (at time of test)
  • JJC variable ND: under $100, “incredible”
  • Knee / NiSi Nano-type budget filter: excellent color close to JJC at under $100

Other notes:

  • Filter diameter/size affects cost (more glass = higher price)
  • Suggestion: use step-up rings to standardize on one size (example workflow with 82mm)

Comparisons made

  • Variable ND vs fixed ND
    • Fixed ND: better color accuracy, fewer artifacts; less convenient
    • Variable ND: convenience for fast exposure changes, but may introduce artifacts/polarization effects
  • One-filter “1–9 stop” designs vs modular systems (e.g., JJC / 7 Artisans)
    • One-filter designs often fail to remain usable at high settings
    • Modular approaches help preserve usability

Concise verdict

  • Best recommendation (least compromises): NiSi True Color 1–5
  • Best budget performance: 7 Artisans VND True Color (2–5 stop) (strongest corners/vignette behavior for the money)
  • Best versatile higher-end system: Freewell K2 (top overall quality + modular cinema-style flexibility)

Unique points list (all distinct claims/topics)

  1. Tested 14 variable ND filters from about $25–$400+ (up to ~$499).
  2. Evaluated color cast, sharpness/detail, vignette/X-pattern, cross pattern, flare/glare, and ergonomics.
  3. Explained what ND filters do (“camera sunglasses”) and use cases (video 180 rule; long exposures).
  4. Differentiated variable ND vs fixed ND (performance vs convenience).
  5. Variable ND uses two crossed polarizers, bringing convenience but potential artifacts.
  6. Variable ND can create polarizer-like behavior affecting reflections/glare.
  7. Variable ND can cause cross pattern / dark corners / vignette, worst at wide angles + high reductions.
  8. Color cast measured in Kelvin shift and tint, with multiple models quantified.
  9. A cheaper “nearer Nano” 1–5 filter performed close to expensive models on color shift.
  10. Vignette/cross artifacts depend on focal length and how many stops you push.
  11. At 15mm, near-max stop reduction can be unusable.
  12. At 35mm, most filters are usable at max reductions.
  13. Single-ring “1–9 stop” designs may be unusable at the top end; modular designs maintain usability.
  14. Sharpness/detail impact is negligible; don’t choose mainly on sharpness.
  15. Flare/glare performance varies widely; some models struggle while Freewell K2 and NiSi True Color stand out.
  16. Value is not strictly tied to price; multiple mid/budget models are close to top performers.
  17. Filter diameter/size impacts cost; step-up rings can reduce total spend (e.g., 82mm workflow).
  18. Specific system recommendations mentioned: Freewell Matte Box, Freewell K2, NiSi Pro/True Color, JJC True Color, 7 Artisans, KN&F Nano K, H&Revo ring, H&Y Revo ring.

Speaker contributions

No separate speakers were identified; the review appears to be narrated by a single presenter throughout.

Original video