NiSi Swift True Color ND-Vario Variable ND Filter, 67mm Review
A variable ND that holds neutral colour and avoids the X pattern, on a 72mm front thread to keep wide lenses clear.
| Brand | NiSi |
|---|---|
| Model | 500169 |
| Part number | NIR-TCVND0.3-1.5-67 |
| Mount thread | 67mm |
| Front thread | 72mm |
| Density range | ND2 to ND32, ND0.3 to ND1.5 |
| Best for | Video and stills at 35mm and longer where colour has to stay neutral |
Product Overview
Variable ND filters have two well-known faults. They tint the image, usually toward yellow, and at the extremes they produce a dark X across the frame where the two polarising layers cross. Both are the reason many photographers avoid them and carry fixed filters instead.
NiSi's answer here is to attack both directly. An exclusive true colour coating is specified to prevent the yellow tint other variable NDs introduce, and the one to five stop range is chosen deliberately: by stopping at five rather than pushing to ten, the polarisers never reach the angle where the X appears.
That is the trade to understand before buying. You get clean colour and smooth gradation across the whole rotation, and you give up the very heavy densities. For video at a standard frame rate, and for stills in anything but blazing midday sun, five stops is usually the useful range anyway.
Score Breakdown
This verdict is based on the manufacturer's stated specifications, the current Amazon listing and its product images, the confirmed materials and design, real buyer ratings, and our research into the product category. Scores are consistent editorial judgments, not laboratory measurements, and we did not receive a paid sample.
Key Features
Specified to prevent the yellow tint other variable NDs introduce, so colour stays neutral across the rotation.
A deliberately capped range, which is what keeps the two polarising layers away from the angle that produces an X pattern.
A wider front opening than the 67mm mount, paired with a thin frame, so the filter body stays out of the corners.
Applied to both sides for low reflection plus water, oil and dust resistance, which makes it cleanable outdoors.
Density adjusts continuously rather than in steps, so exposure can be trimmed by feel while recording.
A second 67mm Swift filter presses onto the front rather than threading on, so looks can be changed between takes.
Design and Build Quality
The filter mounts on a 67mm thread but carries a larger 72mm front thread, combined with a thin frame. That combination is the anti-vignetting design: a wider front opening means the filter body does not intrude into the corners of the frame. NiSi specifies it as vignette-free at focal lengths of 35mm and longer.
Coating runs to up to 20 layers of multi-nano treatment on both sides. The stated benefits are low reflection plus water, oil and dust resistance, which on a front element matters practically rather than theoretically: a filter you can wipe clean without smearing is a filter you will actually use outdoors.
It is also part of NiSi's Swift System, so a 67mm Swift filter can be pressed onto the front to stack effects without a second thread mount. Those add-on filters are sold separately. The model is 500169, part number NIR-TCVND0.3-1.5-67. The listing's stated physical dimensions are not credible for a 67mm filter, so we have not reported them.
Performance in Everyday Use
Colour neutrality is the specification doing the most work. A variable ND that shifts colour forces you to correct every clip or frame afterwards, and the correction is never quite uniform across the rotation. NiSi's true colour coating is aimed squarely at that, and it is the reason to pay attention to this filter over a generic variable ND.
The density range reads as ND0.3 to ND1.5, which is ND2 to ND32, or one to five stops. For video that is the practical band: enough to hold a wide aperture and a 1/50 second shutter in daylight without clipping. For stills it covers the usual needs of smoothing water or blurring movement in anything short of full midday sun.
Avoiding the X effect is the other half of the design. The X appears when a variable ND is rotated near its maximum, where the two polarising layers approach crossed alignment. By capping the range at five stops NiSi keeps the whole rotation usable, so you can adjust by feel while recording rather than watching for the pattern to appear.
The Swift System is worth noting if you shoot video. Being able to press a second filter onto the front rather than unscrewing and rethreading means changing a look between takes is quick. The additional filters are a separate purchase, so treat it as an upgrade path rather than something included.
How It Performs: The Evidence
| Decision factor | What we found | Evidence and measurement | Score | Why it matters |
|---|---|---|---|---|
| Colour neutrality | Exclusive true colour coating against yellow tint | Listing states an exclusive true color coating that prevents the unwanted yellow tint often seen in other ND filters | 9.5 | A colour-shifting ND forces correction on every frame, never quite uniformly |
| X effect | None across the one to five stop rotation | Listing states 1-5 stops with smooth gradual light control and without the X effect found in standard neutral density filters | 9.5 | The X pattern appears near maximum density and ruins the frame |
| Vignetting | 72mm front thread with a thin frame, none stated from 35mm | Listing states a larger 72mm front filter thread and thin frame design ensuring no vignetting, ideal from 35mm and longer | 9.0 | A filter body intruding into the corners is the usual cost of a thick frame |
| Coating | Up to 20-layer multi-nano on both sides | Listing states up to 20-layer multi-nano coating with low reflections and water, oil and dust resistance on both sides | 9.5 | A front element that smears when wiped is one you stop using outdoors |
| Density range | ND2 to ND32, one to five stops | Listing states 1-5 stops, ND0.3 to ND1.5 | 7.0 | Enough for video and most stills, short of long daylight exposures |
| Expandability | Compatible with the NiSi Swift System | Listing states compatibility with the Swift System, allowing a 67mm Swift filter to press onto the front, sold separately | 8.5 | Press-on stacking is faster than unthreading between takes |
| Warranty terms | 12 month limited, authorised dealers only | Manufacturer information states a 12-month limited warranty requiring valid proof of purchase from an authorised NiSi USA dealer | 7.0 | Buying through an unauthorised seller can void support entirely |
Who Should Buy It
- Video shot at a fixed shutter speed in daylight
- Stills at 35mm and longer needing neutral colour
- Shooters tired of correcting a yellow cast in post
- Anyone who has seen the X effect ruin a clip
- Building up a NiSi Swift filter stack over time
- Ultra-wide work below 35mm, or anyone needing ten stops for long daylight exposures
- One to five stops only, so no long daylight exposures
- Vignette-free rating starts at 35mm, not wider
- Swift System add-on filters are sold separately
- Warranty requires purchase from an authorised dealer
Full Specifications
How It Compares
| Feature | NiSi | Typical budget | Premium option |
|---|---|---|---|
| Colour | True Color coating, neutral | Yellow cast at higher densities | Neutral, fixed density |
| Density range | One to five stops | Two to eight or more stops | Single fixed density |
| X effect | None across the rotation | Appears near maximum | Not applicable |
| Front thread | 72mm, wider than the mount | Same as the mount | Square filter holder |
| Coating | Up to 20 layers, both sides | Single coating | Multi-coated |
| Stacking | Swift press-on system | Thread a second filter | Slot-in holder |
Alternatives Worth a Look
A variable ND that fixes the two things people dislike about variable NDs. True colour coating addresses the yellow cast, and capping the range at five stops keeps the X pattern out of the picture entirely. The 72mm front thread and thin frame keep wide lenses clean from 35mm up, and 20 layers of nano coating make it practical to clean in the field. Accept the narrow density range as the deliberate design choice it is.
Frequently Asked Questions
What is the X effect and does this avoid it?
It is a dark X across the frame that appears when a variable ND is rotated near its maximum, where the two polarising layers approach crossed alignment. NiSi states this filter has no X effect, and capping the range at five stops is how that is achieved.
Why only one to five stops?
Because that is the range where a variable ND behaves well. Pushing toward eight or ten stops is what introduces the X pattern and the colour shift. For video at a fixed shutter speed and for most daylight stills, five stops covers the practical need.
Will it add a colour cast?
NiSi specifies an exclusive true colour coating precisely to prevent the yellow tint that other variable NDs introduce. That is the filter's main selling point, because a shifting cast means correcting every frame and the correction is never uniform across the rotation.
Will it vignette on a wide lens?
NiSi states no vignetting at focal lengths of 35mm and longer, achieved through a 72mm front thread that is wider than the 67mm mount, plus a thin frame. Below 35mm you are outside the stated range, so test before relying on it.
What thread size do I need?
This is the 67mm version, mounting on a 67mm lens thread. Note the front thread is 72mm, which is deliberate for vignetting control, so a lens cap or further filter for the front needs to be 72mm rather than 67.
What is the Swift System?
NiSi's press-on stacking system. A second 67mm Swift filter pushes onto the front of this one rather than threading on, which is faster when changing looks between takes. The add-on filters are sold separately, so treat it as an upgrade path.
Can I clean it in the field?
That is what the coating is for. Up to 20 layers of multi-nano treatment on both sides give water, oil and dust resistance, so fingerprints and spray wipe off rather than smearing. On a filter used outdoors that is a practical rather than a cosmetic benefit.
What does the warranty cover?
A 12 month limited warranty against defects in materials and workmanship under normal use, and NiSi states it requires valid proof of purchase from an authorised NiSi USA dealer. Products bought from unauthorised sellers may not be eligible, so check the seller.
This review is based on the manufacturer's stated specifications, the current product listing and its images, the confirmed thread sizes, density range, coating layers, stated vignetting behaviour, system compatibility, model and part numbers and warranty terms, and our own research into how variable ND filters differ. It is editorial analysis, not laboratory testing, and we have not shot with this filter ourselves. The listing's physical dimensions are not plausible for a 67mm filter so we omitted them, and we have reported only the accessories the product data confirms.