Bright daylight can force a camera into a shutter speed that freezes water, ruins cinematic motion, or closes the aperture when you want a shallow background. A variable ND filter solves that problem by letting you turn down the light without changing lenses.
The Best variable nd filter for most photographers is the K&F Concept 67mm Variable ND2-400, thanks to its broad 1 to 9-stop range, slim frame, and useful 360-degree adjustment. The ten picks below cover common lens sizes, a side lever design, and true-color models that combine neutral density with polarization.
Comparison table
| # | Product | Award | Size | Light reduction | Coatings | Best for |
|---|---|---|---|---|---|---|
| 1 | K&F Concept 67mm Variable ND2-400 | Best overall | 67mm | 1 to 9 stops | 8-layer AGC glass | General photography and video |
| 2 | K&F Concept 82mm Variable ND2-400 | Best for large lenses | 82mm | 1 to 9 stops | 8-layer AGC glass | Large-diameter lenses |
| 3 | K&F Concept 82mm Side Lever ND2-400 | Best for video control | 82mm | 1 to 9 stops | 28-layer AGC glass | Fast exposure adjustments |
| 4 | K&F Concept 82mm True Color ND2-32 | Best true-color large filter | 82mm | 1 to 5 stops | 28-layer AGC glass | Video and reflective scenes |
| 5 | K&F Concept 67mm True Color ND2-32 | Best true-color 67mm | 67mm | 1 to 5 stops | 28-layer AGC glass | Color-sensitive shooting |
| 6 | K&F Concept 58mm Variable ND2-400 | Best for 58mm lenses | 58mm | 1 to 9 stops | 8-layer AGC glass | Compact lens systems |
| 7 | K&F Concept 77mm Variable ND2-400 | Best for 77mm lenses | 77mm | 1 to 9 stops | 8-layer AGC glass | Standard full-size lenses |
| 8 | K&F Concept 67mm Ultra Slim ND2-ND400 | Best ultra-slim design | 67mm | 1 to 9 stops | 18-layer AGC glass | A low-profile setup |
| 9 | K&F Concept 77mm True Color ND2-32 | Best true-color 77mm | 77mm | 1 to 5 stops | 28-layer AGC glass | Polarized landscape video |
| 10 | NEEWER 67mm Variable ND2-ND400 | Best coated alternative | 67mm | 1 to 9 stops | Multiple nano coatings | Outdoor motion blur |
1. K&F Concept 67mm Variable ND2-400: Best Overall
Pros
- Broad 1 to 9-stop adjustment
- 360-degree rotation gives fine control
- Slim 7.4mm frame
- AGC optical glass with eight coating layers
Cons
- The maximum setting can create an X-shaped dark pattern
- Requires a 72mm lens cap
- It does not combine ND and polarization
Best for: photographers and videographers who want one versatile filter for a 67mm lens thread.
The K&F Concept 67mm Variable ND2-400 is the easiest pick to recommend because it covers the situations that make people buy a variable ND filter in the first place. The 1 to 9-stop range is wide enough for a bright outdoor portrait, video shutter control, or a longer exposure on moving water. Its rotating frame lets you make gradual changes rather than swapping between fixed filters.
The glass is AGC optical glass with eight layers of multicoating. That matters when the sun is near the frame or a bright reflection is bouncing across the front element, since the coatings are intended to reduce reflections and glare. The frame is 7.4mm thick, and its CNC pattern gives your fingers more purchase when turning or removing it. This is a practical design detail, especially when the filter is mounted tightly.
There is one compatibility detail to catch before ordering. This is for lenses with a 67mm filter thread, not lenses with a 67mm focal length. The filter also calls for a 72mm lens cap. At the top of its range, the filter can show the familiar black cross pattern with certain lenses and focal lengths. That is a limitation of this broad variable range, not a setting to ignore.
Compared with the K&F Concept 67mm Ultra Slim ND2-ND400, this model has the same broad range and a similar 7.4mm profile, but it specifies eight coating layers rather than 18. The K&F Concept 67mm True Color ND2-32 is the more specialized alternative if preserving color and reducing reflections matter more than reaching nine stops. Choose this model when flexible exposure control is the priority.
2. K&F Concept 82mm Variable ND2-400: Best for Large Lenses
Pros
- 1 to 9 stops of adjustable light reduction
- 360-degree rotation
- 7.4mm slim frame
- Eight-layer AGC optical glass
Cons
- The maximum setting may produce an X-shaped pattern
- Requires an 86mm lens cap
- No built-in polarizer
Best for: owners of lenses with an 82mm filter thread who need a broad exposure range.
The K&F Concept 82mm Variable ND2-400 is the large-thread counterpart to the top pick. Its purpose is straightforward: mount it on an 82mm lens and adjust the amount of light without carrying a stack of fixed filters. The ring turns through 360 degrees, so you can make small changes while composing instead of jumping between widely spaced settings.
Its 1 to 9-stop range gives it more reach than the true-color models in this roundup. One stop is useful when the scene is only slightly too bright, while the upper end gives much more room for wide apertures or slower shutter speeds in strong light. The filter uses AGC optical glass and eight multicoating layers to help control reflections and glare.
The slim 7.4mm frame helps keep the filter from becoming an unnecessarily bulky extension on the front of a large lens. The outer surface uses an oxidized sandblasting treatment intended to reduce stray light and give the frame a less slippery feel. Remember that 82mm refers to the filter thread. K&F specifies an 86mm lens cap for this filter.
The obvious comparison is the K&F Concept 82mm Side Lever ND2-400. Both offer 1 to 9 stops, but the side lever model gives video shooters a more deliberate adjustment point and adds substantially more coating layers. The standard 82mm model is the simpler choice for stills and general use, while the side lever is more appealing when exposure changes happen during a shot.
Skip this filter if you specifically want polarization in the same piece of glass. For that, the K&F Concept 82mm True Color ND2-32 is the better match, though its range stops at five stops. This filter is for the buyer who wants maximum flexibility from a conventional rotating variable ND.
3. K&F Concept 82mm Side Lever ND2-400: Best for Video Control
Pros
- Side lever makes exposure changes easier
- Markings cover ND2 through ND400
- 28-layer AGC glass
- Hydrophobic, oil-resistant, and scratch-resistant coatings
- Designed to avoid vignetting at 16mm
Cons
- The broad range can still produce a dark cross pattern
- Requires an 86mm lens cap
- The lever adds a distinctive protruding control
Best for: video shooters who need repeatable exposure adjustments on an 82mm lens.
The K&F Concept 82mm Side Lever ND2-400 is the most purpose-built filter here for people who adjust exposure while looking through a camera. Instead of relying only on the outer rim, its putter-style side lever gives you a clear physical control. The frame marks every position from ND2 to ND400, making it easier to return to a setting or make a controlled change between takes.
It retains the full 1 to 9-stop range, with a smooth 360-degree rotation. That gives it the same exposure flexibility as the standard 82mm K&F filter, but the control layout is more useful when your attention is on framing, focus, and movement. K&F also states that the 7.4mm frame is designed for ultra-wide use without vignetting at a 16mm focal length.
This is the most heavily coated K&F model in the group, with 28 layers on Japanese AGC optical glass. The coatings are described as hydrophobic, oil-proof, and scratch-resistant on both sides. Those protections do not make the filter indestructible, but they are sensible features for outdoor production where fingerprints, spray, and dust are part of the routine.
The weakness is the same trade-off that comes with other very broad variable NDs. At certain lens and focal-length combinations, the strongest settings can produce a dark cross pattern. The K&F Concept 82mm True Color ND2-32 avoids that specific issue through a self-locking design that rotates through 1 to 5 stops, but it cannot darken the scene as much. Choose the side lever model when control and range matter more than the simplest frame.
4. K&F Concept 82mm True Color ND2-32: Best True-Color Large Filter
Pros
- Combines variable ND and polarizer functions
- Self-locking adjustment from 1 to 5 stops
- Designed to avoid the X-shaped pattern
- 28-layer AGC glass
- Water and scratch-resistant coating
Cons
- Five-stop maximum is narrower than ND2-400 models
- Requires an 86mm lens cap
- Adds polarization when you may only want neutral density
Best for: landscape and video users with 82mm lenses who want exposure control and reflection reduction together.
The K&F Concept 82mm True Color ND2-32 takes a different approach from the first three filters. Rather than stretching from 1 to 9 stops, it covers 1 to 5 stops and adds a polarizer. That makes it more useful when the scene includes water, glass, foliage, or a bright sky that would benefit from reduced reflections and stronger contrast.
The adjustment uses a self-locking frame and rotates through the five-stop range. K&F specifically says this design avoids the black cross pattern associated with many variable filters. For video, that controlled range is easier to manage than pushing a long-range filter toward its extreme setting and then discovering an unwanted shape in the image.
The filter uses AGC optical glass with 28 multicoating layers. Its titanium coating is intended to reduce partial yellow and color shift, which is the reason to choose a true-color model over the standard ND2-400 versions. The claimed water and scratch resistance is useful protection for outdoor work, though the glass still deserves normal care.
The cost of that cleaner behavior is range. The K&F Concept 82mm Side Lever ND2-400 can cut much more light and offers marked adjustment for video, while this model is more focused on controlled, moderate reduction. If you regularly shoot in very bright conditions with wide apertures, choose the side lever model. If you want one filter to handle ND and reflections on a large lens, this is the more complete tool.
5. K&F Concept 67mm True Color ND2-32: Best True-Color 67mm
Pros
- Combines ND and CPL functions
- 1 to 5-stop self-locking range
- Designed to avoid the X-shaped pattern
- 28-layer AGC optical glass
- Water and scratch-resistant coatings
Cons
- Less light reduction than ND2-400 filters
- Requires a 72mm lens cap
- Polarization is not always wanted
Best for: 67mm lens owners who want natural color and reflection control in one filter.
The K&F Concept 67mm True Color ND2-32 is the smaller-thread version of the 82mm true-color filter, and its appeal is the same. It combines a variable ND with a polarizer, so you can reduce light while also cutting reflections from nonmetallic surfaces. That is particularly useful around water, windows, and wet leaves, where a plain ND filter only solves the exposure problem.
Its range runs from 1 to 5 stops, with a self-locking frame that rotates infinitely within that range. The design is intended to avoid the X-shaped cross that can appear at the limits of a wider variable ND. You give up the upper four stops found on the ND2-400 models, but the adjustment is more contained and easier to keep within a predictable range.
K&F uses AGC optical glass and 28 coating layers here. The titanium coating is intended to prevent partial yellow and other color shifts, while the water and scratch-resistant treatment gives the surface some protection in outdoor conditions. The filter fits 67mm lenses and requires a 72mm lens cap, so check the diameter symbol on the lens before ordering.
Against the K&F Concept 67mm Variable ND2-400, this filter is the better fit for reflective scenes and color-sensitive video, while the standard model is the better fit for maximum exposure control. The NEEWER 67mm Variable ND2-ND400 also reaches nine stops and uses multiple coatings, but it does not combine ND and CPL functions. Choose this K&F model when five stops is enough and the added polarization earns its place in your kit.
6. K&F Concept 58mm Variable ND2-400: Best for 58mm Lenses
Pros
- Full 1 to 9-stop range
- Compact 58mm fit
- 7.4mm slim frame
- Eight-layer AGC optical glass
- 360-degree adjustment
Cons
- May show an X-shaped pattern at maximum settings
- Requires a 62mm lens cap
- No polarizer function
Best for: photographers using lenses with a 58mm filter thread who need broad adjustment in a compact setup.
The K&F Concept 58mm Variable ND2-400 brings the same basic design as the 67mm and 82mm standard filters to a smaller lens thread. It is a good reminder that filter size is determined by the lens thread, not by the camera body or focal length. For a compatible 58mm lens, the filter gives the same practical 1 to 9-stop exposure range as the larger versions.
The ring rotates through 360 degrees, letting you make gradual changes from mild darkening to strong light reduction. The frame is 7.4mm thick, and its CNC pattern is intended to make attachment, removal, and adjustment easier. AGC optical glass with eight coating layers is used to reduce reflections and glare.
K&F also applies an oxidized sandblasting treatment to the metal surface. That should help reduce unwanted stray light and provide a more secure grip. The filter requires a 62mm lens cap, another small but important detail that can otherwise cause frustration when the original cap no longer fits over the mounted filter.
Its main weakness is not unique to the 58mm size. At the high end, certain lenses and focal lengths can create a dark cross pattern, so the ND2-400 label should not be treated as a guarantee of perfectly uniform results at every setting. The K&F Concept 58mm is the sensible choice for a 58mm lens because it offers the broad range without requiring a larger filter system. If your lens is 67mm, move to the K&F Concept 67mm Variable ND2-400 instead of using a step-up ring by default.
7. K&F Concept 77mm Variable ND2-400: Best for 77mm Lenses
Pros
- 1 to 9 stops of adjustment
- 360-degree rotation
- 7.4mm frame
- Eight-layer AGC optical glass
- CNC-patterned grip
Cons
- High settings can show a dark cross pattern
- Requires an 82mm lens cap
- No combined polarizer
Best for: photographers with 77mm lenses who want a conventional broad-range variable ND.
The K&F Concept 77mm Variable ND2-400 is the straightforward choice for a common full-size lens thread. It has the familiar 1 to 9-stop range, so it can handle subtle light reduction as well as much stronger control for wide apertures and slower shutter speeds. The 360-degree rotation gives you room to fine-tune the setting rather than forcing a binary choice.
Its 7.4mm frame is slim enough to keep the front of the lens from becoming needlessly bulky. The CNC-patterned design is made to improve grip, which matters when rotating the outer ring with a hood or other accessories nearby. Inside, the filter uses AGC optical glass with eight multicoating layers for reflection and glare control.
The 77mm size fits lenses with a 77mm filter thread, and K&F specifies an 82mm lens cap. That cap detail is easy to overlook because the filter diameter and cap diameter are different. As with the other standard K&F variable filters, the company warns that the maximum settings can create an X-shaped pattern with particular lenses and focal lengths.
The K&F Concept 77mm True Color ND2-32 is the more specialized alternative. It stops at five stops but adds polarization, a 28-layer coating system, and a design intended to avoid the cross pattern. The standard 77mm ND2-400 is the better tool when range comes first. It is also more suitable for someone who wants a simple, conventional filter rather than a combined ND and CPL.
8. K&F Concept 67mm Ultra Slim ND2-ND400: Best Ultra-Slim Design
Pros
- 1 to 9-stop adjustment
- 7.4mm slim frame
- 18-layer AGC glass
- 360-degree rotation
- CNC-patterned grip
Cons
- High settings may create an X-shaped pattern
- Requires a 72mm lens cap
- No polarizer function
Best for: 67mm lens users who want a low-profile filter with a broad exposure range.
The K&F Concept 67mm Ultra Slim ND2-ND400 is the closest rival to the top pick, and its main distinction is the coating count. It retains the useful 1 to 9-stop range and 7.4mm thickness, while specifying 18 multicoating layers on AGC optical glass. The result is a low-profile option for a 67mm lens when you do not want a thick filter stack at the front.
The 360-degree rotating frame offers gradual control across the range. The CNC pattern is intended to make the ring easier to turn and the filter easier to remove. The frame also uses an oxidized sandblasting treatment to reduce stray light and unwanted reflections from the metal surface.
The trade-off is familiar. The filter can show a dark cross pattern at high settings with certain lenses and focal lengths. That does not make the range useless, but it means you should watch the image as you rotate toward the strongest reduction rather than assume every position will look identical. The product fits 67mm lenses and calls for a 72mm cap.
Compared with the K&F Concept 67mm Variable ND2-400, this model offers more specified coating layers but the same broad range and slim profile. The K&F Concept 67mm True Color ND2-32 is better for users who need polarization and more controlled behavior, though its five-stop ceiling is much lower. Pick the Ultra Slim when keeping the setup restrained matters and you want the strongest range available in this size.
9. K&F Concept 77mm True Color ND2-32: Best True-Color 77mm
Pros
- ND and polarizer in one filter
- 1 to 5-stop self-locking adjustment
- Designed to avoid the X-shaped pattern
- 28-layer AGC optical glass
- Water and scratch-resistant coatings
Cons
- Five stops of reduction is less than the ND2-400 models
- Requires an 82mm lens cap
- Polarization cannot be separated from the ND filter
Best for: 77mm lens owners who shoot reflective landscapes or video and want controlled color.
The K&F Concept 77mm True Color ND2-32 is aimed at a specific but useful setup: a 77mm lens, moderate exposure reduction, and a need to manage reflections. Its combined variable ND and CPL design can darken the image while reducing reflections from water, glass, and other nonmetallic surfaces.
The filter rotates from 1 to 5 stops with a self-locking design. K&F says the mechanism avoids the black cross effect found with some broad-range variable filters. That makes it a more controlled option for video, where an artifact that appears during a live adjustment can spoil an otherwise usable shot.
The optical glass is AGC glass with 28 coating layers. K&F describes the coatings as waterproof and scratch-resistant, while the titanium treatment is intended to prevent partial yellow and color shift. The filter fits a 77mm lens thread and needs an 82mm lens cap, so the accessory fit is not the same as the filter fit.
The K&F Concept 77mm Variable ND2-400 is better if you need nine stops, particularly in very bright conditions. This true-color model is the more considered choice when five stops covers your work and reflection control is valuable. It is not the filter to choose if you want a pure ND effect with no polarizing influence.
10. NEEWER 67mm Variable ND2-ND400: Best Coated Alternative
Pros
- 1 to 9 stops of light reduction
- Four-element optical glass
- Japanese NITTO polarizing film
- Multiple nano coatings
- 9.5mm ultra-slim metal frame
Cons
- A dark cross pattern may appear with some lenses
- The frame is thicker than the 7.4mm K&F designs
- The manufacturer recommends fixed ND1000 or ND2000 filters for longer exposures
Best for: 67mm lens owners who want broad adjustment and protective nano coatings.
The NEEWER 67mm Variable ND2-ND400 gives 67mm users a credible alternative to the many K&F options here. It covers 1 to 9 stops and is designed for scenes where you want slower shutter speeds, wider apertures, or motion blur from rivers and waterfalls. Its range is broad enough for general outdoor shooting, though the manufacturer is clear that it is not a substitute for an ND1000 or ND2000 filter when you need very long exposures.
The filter uses four-element optical glass and a Japanese NITTO polarizing film. NEEWER says the combination is intended to preserve neutral contrast and color reproduction. Multiple nano coatings are designed to reduce flare and ghosting, protect against water, oil, dust, and scratches, and block ultraviolet rays from 300nm to 380nm.
Its 9.5mm metal frame is described as ultra slim and uses precise threads. That is still a restrained design, but it is thicker than the 7.4mm frames on the standard K&F filters. NEEWER says the frame helps prevent vignetting on wide-angle and telephoto lenses, although the possible dark cross pattern remains a normal limitation with some lenses and focal lengths.
The K&F Concept 67mm Ultra Slim ND2-ND400 is the closer match if the thinnest frame is your priority, while the K&F Concept 67mm True Color ND2-32 is better for a controlled range with combined polarization. Choose NEEWER when its protective coating package and NITTO polarizing film matter more than having the narrowest frame.
How to choose best variable nd filter
The right variable ND filter depends less on a long feature list than on your lens thread, required light reduction, and tolerance for artifacts at the strongest settings.
Filter thread size
The filter must match the diameter printed beside the lens's diameter symbol, such as 58mm, 67mm, 77mm, or 82mm. A filter that is too small will not mount, while a larger filter needs an appropriate step-up ring. The lens cap may also need to be larger than the filter itself, as shown by the 72mm cap requirement for 67mm filters and the 86mm requirement for 82mm filters.
Light reduction range
A 1 to 5-stop filter is easier to keep within a controlled range and can be enough for ordinary daylight video or landscape work. A 1 to 9-stop ND2-400 filter gives much more flexibility for bright conditions, wide apertures, and slower shutter speeds. The upper end should be treated as a useful limit, not an assurance that every lens will produce a clean image at maximum rotation.
A broad ND range is useful only when the strongest settings remain visually usable on your lens.
Cross-pattern behavior
Variable NDs use two layers of polarized material, and some combinations of lens, focal length, and rotation can produce a dark X-shaped pattern. The standard ND2-400 models warn about this effect. The true-color ND2-32 models use a self-locking design and a shorter range intended to avoid it. If you shoot video and adjust exposure during a take, the more controlled five-stop designs deserve serious consideration.
Coatings and glass
Multicoating helps reduce reflections and glare, while hydrophobic, oil-resistant, and scratch-resistant layers make outdoor handling less stressful. The K&F standard models specify eight coating layers, the ultra-slim model specifies 18, and the side lever and true-color models specify 28. NEEWER uses multiple nano coatings with four-element glass and Japanese NITTO polarizing film.
If sensor dust and changing conditions are part of your wider camera setup, it is useful to understand how airborne particles are handled in a room too, especially when gear spends time near household HVAC airflow.
Frame thickness and controls
A slim frame reduces the chance of adding unnecessary bulk and can help with wide-angle compositions. The K&F models use 7.4mm frames, while NEEWER specifies 9.5mm. A side lever, as on the 82mm K&F model, is easier to find and adjust during video than a plain outer ring. For still photography, a conventional rotating frame is usually simpler.
Frequently asked questions
What does a variable ND filter do?
A variable ND filter reduces the amount of light reaching the camera sensor. Rotating the filter changes the strength, allowing you to use a wider aperture or slower shutter speed in bright conditions without changing the lens.
What size variable ND filter should I buy?
Buy the size that matches the filter thread on your lens, not the focal length. The thread size is usually printed on the lens beside a diameter symbol. If you use several lenses, a larger filter with step-up rings can be a flexible approach, provided the filter does not obstruct the lens or hood.
Is ND2-400 the same as 1 to 9 stops?
ND2-400 describes a range of light reduction that is commonly presented as roughly 1 to 9 stops. The actual usable result can vary with the lens, focal length, and lighting conditions, especially near the strongest setting.
Why does an X-shaped pattern appear?
A variable ND filter uses two polarizing layers that rotate relative to each other. At certain combinations of lens, focal length, and rotation, the layers can create a dark cross pattern. Reducing the filter strength or choosing a shorter-range true-color model can help avoid it.
Should I choose a true-color ND and polarizer model?
Choose one if you want to reduce reflections from water, glass, or foliage while controlling exposure. The true-color models in this roundup cover 1 to 5 stops and combine ND with polarization, so they are less suitable if you need the 1 to 9-stop range or want a pure neutral-density effect.
Can a variable ND filter replace an ND1000 filter?
No. The products here are designed for adjustable exposure control, but the NEEWER listing specifically recommends an ND1000 or ND2000 filter for longer exposures. A fixed, very dark filter is often more appropriate when you need extended shutter speeds in bright daylight.
Do variable ND filters affect image color?
They can, depending on the filter design and setting. The true-color K&F models use titanium coating intended to reduce partial yellow and color shift, while the NEEWER model uses four-element glass and Japanese NITTO polarizing film for neutral contrast and color reproduction.
The bottom line
The K&F Concept 67mm Variable ND2-400 is the Best variable nd filter for most people with a 67mm lens thread because it offers a 1 to 9-stop range, a slim 7.4mm frame, and straightforward 360-degree adjustment. The K&F Concept 82mm Side Lever ND2-400 is the stronger specialist pick for video shooters who want marked settings, a physical lever, and heavier coating protection.
For reflective scenes or color-sensitive video, choose the K&F Concept 67mm True Color ND2-32 or its 77mm and 82mm counterparts. They trade maximum darkness for a more controlled five-stop range, combined polarization, and a design intended to avoid the X-shaped artifact.
If you are undecided, match the filter diameter first, then choose the widest range you can use without pushing into visible cross-pattern artifacts.