Variable ND Filter 77mm ND2-ND400 (1-9 Stops) - Slim Adjustable

In this review of the Variable ND Filter 77mm ND2-ND400 the bottom line is simple: photo and video shooters who need flexible exposure control in bright conditions will appreciate the adjustable range and optical quality. The filter is crafted from premium AGC optical glass with 18 multi-layer coatings and offers 1 to 9 stops of light reduction with smooth 360-degree rotation, making it a practical tool for landscape, long exposure, and run-and-gun videography. It is best for users who own a 77mm lens thread and want a compact, well-built variable ND solution.

Key Features

• Premium optical glass: AGC optical glass with 18 multi-layer coatings reduces reflections and glare for cleaner images across bright scenes.
• Wide adjustable range: Variable ND from ND2 to ND400 (1 to 9 stops) gives precise exposure control for daytime long exposures and cinematic aperture choices.
• 360-degree rotation: Smooth rotation lets you fine-tune the dimming level and compose without changing other camera settings.
• Slim profile: At about 7.4mm thickness the ultra slim frame reduces vignetting on wide-angle lenses while remaining sturdy to attach and remove.
• Included accessories: The custom filter cap and microfiber cleaning cloth provide protection and safe cleaning when the filter is not in use.
• Glare-free finish: Oxidized sandblasting on the metal surface minimizes stray light and improves handling when rotating the filter.

Who It's For

This filter suits photographers and videographers who frequently work outdoors and need rapid, variable reduction of light without swapping several fixed ND filters. It is particularly useful for landscape photographers shooting long exposures in daylight and for videographers wanting shallow depth of field in bright conditions.

Those using lenses with 77mm threads will get the straightforward fit, while users with other thread sizes should choose the matching diameter. Photographers who require absolute color neutrality or who shoot at extreme focal lengths may want to test for the natural cross-pattern at very high stops and consider a fixed ND for those specific scenarios.

Pros & Cons

Pros

• Solid build and value: customers report strong build quality and good functionality for price.
• Excellent image control: the multi-layer coatings and AGC glass deliver clear results in bright outdoor settings.
• Convenient accessories: included cap and cloth make storage and maintenance easier.
• Slim design reduces vignetting and is easy to handle when rotating.

Cons

• Possible X cross pattern at high stops with some lenses and focal lengths, which is a known, natural limitation of variable NDs.
• Fit and color accuracy have mixed reports across different camera setups, so testing before critical shoots is advised.

Specifications

Filter type	Variable Neutral Density (ND2-ND400)
Stops range	1 to 9 stops
Thread size	77mm
Glass	AGC optical glass with 18 multi-layer coatings
Frame thickness	Approx. 7.4mm ultra slim
Accessories	Filter cap and microfiber cleaning cloth
Finish	Oxidized sandblasted metal surface

Our Verdict

The Variable ND Filter 77mm ND2-ND400 is a practical and affordable option for photographers and videographers needing flexible light control and solid optics. With premium AGC glass, 18 coatings, and a slim durable frame, it delivers good image quality and handling for most outdoor use. Those sensitive to the X cross effect at extreme settings should test it with their lenses, but for general landscape and video work this filter represents strong value.

Frequently Asked Questions

Will this fit my lens?
It fits lenses with a 77mm thread; check your lens barrel for the diameter symbol and number to confirm compatibility.

Does the filter change color or create reflections?
The 18 multi-layer coatings reduce reflections and glare, though a small amount of color shift or a cross-pattern at very high stops can occur depending on lens and focal length.

What is included in the box?
The filter ships with a custom-fit filter cap and a microfiber cleaning cloth for safe maintenance.