Comparison of Freewell ND filters showing three models: K2, V2, and M2

Best ND & Variable ND Filters Compared Freewell V2 vs K2 vs M2

When it comes to capturing professional-quality visuals, having the right ND (Neutral Density) or Variable ND (VND) filter can completely transform your workflow. Whether you're filming in bright sunlight or shooting long exposures in nature, ND filters help you maintain creative control. In this guide, we compare Freewell’s top filter systems—V2 Hybrid VND/CPL, K2 Futureproof, and M2 Magnetic Quick Swap—to help you choose the best ND filter system for photography or filmmaking.

What Are ND Filters and Variable ND Filters?

ND filters reduce the amount of light entering your lens, allowing you to shoot with slower shutter speeds or wider apertures even in bright environments. Variable ND filters (VNDs) offer adjustable light reduction, letting you dial in the perfect exposure without switching filters. They're especially useful for filmmakers and hybrid shooters who require flexibility on the go.

A stunning night shot of a city skyline reflecting on a calm lake, with a large Ferris wheel illuminated against a backdrop of tall buildings and dramatic, cloudy skies

Best Variable ND Filter with Built-in CPL: Freewell V2

The Freewell V2 Hybrid VND/CPL system is an innovative 2-in-1 filter combining a Variable ND filter and Circular Polarizer (CPL). Designed to reduce color shift and cross-polarization, it's ideal for high-contrast environments like landscapes or water scenes.

  • Key features: True color rendering, CPL built-in, magnetic mount

  • Best for: Cinematic video, polarized reflections, landscape photography

Best VND Freewell VND to a camera lens, showing the filter with 'Neutral Density' labeling on the edge

Futureproof ND Filter System for Creators: Freewell K2

The Freewell K2 Futureproof system is the most modular and future-ready VND filter system on the market. With support for gradient filters, glow mist, CPL, and both fixed and variable ND, it’s the all-in-one solution for hybrid shooters who wants the to have feature of matte box but without the bulk of matte box. 

  • Key features: Modular magnetic mount, support for gradients, ND1000, and CPL.

  • Best for: Professionals needing multiple filter types with one mount

A close-up image of a camera lens equipped with a Freewell K2 ND filter, showcasing the filter with a soft gradient effect, attached to a camera rig with red adjustment knobs.

Magnetic ND Filter Quick Swap System: Freewell M2

The Freewell M2 Magnetic Quick Swap filter system is designed for speed and simplicity. Ideal for run-and-gun creators, it supports 1 second quick swaps between ND levels without color coding confusion.

  • Key features: Color-neutral ND filters, quick identification, compatible with lens hoods

  • Best for: On-the-go videographers who need rapid changes in exposure

Best ND Filters Close-up of a person holding a camera lens, with a Freewell M2 filter being attached, showing various filter settings labeled UV, CPL, ND1000, and ND64.

Comparison Chart: V2 vs K2 vs M2 ND Filter Systems

 

Feature V2 Hybrid VND/CPL K2 Futureproof M2 Quick Swap
Filter Types VND + CPL VND, ND, Gradient, CPL, Glow Mist ND, CPL, Mist
Mount System Magnetic Magnetic + K2 Island Magnetic
Color Accuracy True Color Coating True Color/Color Neutral Color Neutral
Adjustable Stops 3–7 VND 1–5, 6–9 VND ND, CPL, Mist
Optional Filters Glow Mist, Snow Mist, Streak CPL, Glow Mist, ND1000, Gradient ND, CPL, Mist
Compatibility 82mm, base rings available 52–82mm threads 82mm, 77mm, 67mm step-up rings available
Ideal Use Case Filmmaking, travel, polarizing shots Multi-purpose for photo + video Quick filming transitions


Which ND Filter System Is Best for You?

If you're looking for:

FAQ: ND & Variable ND Filter Buyers

 

1. What is the difference between ND and Variable ND filters? ND filters are fixed-strength light blockers. Variable ND filters allow you to adjust exposure between multiple stops.

2. Which is better for video: ND or VND filters? VND filters are more versatile for video since you can adjust exposure on the fly.

3. Are Freewell ND filters color accurate? Yes, all Freewell filters use true color or color-neutral technology to prevent shifts.

4. Can I use these filters on different lens sizes? Yes. All three systems come with standard thread sizes or adapter rings from 52mm to 82mm.

5. Can I stack ND filters with these systems? K2 allows stacking gradient + ND + CPL, M2 allows stacking filters , V2 allows stacking the optional filters.

6. Are the V2, K2, and M2 systems compatible with each other? No, these filter systems are not cross-compatible. Each has a unique magnetic or mechanical mounting design tailored to its specific filter sizes and accessories, So kindly pick all the related accessories from their specific category. 

Best ND Filters for Every Creator: Final Thoughts

Whether you’re a landscape photographer, content creator, or filmmaker, having the right ND or Variable ND filter system can dramatically improve your footage. Freewell offers three excellent systems tailored for different needs—from the ultra-flexible K2, to the polarizing power of V2, to the fast-paced shooting benefits of M2. Choose your system based on how and where you shoot, and elevate your creative control with confidence.

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