Urth 58mm ND2-400 Variable ND Lens Filter - Ultra-Slim, Locking Rim

In this review of the Urth 58mm ND2-400 Variable ND Lens Filter the bottom line is simple: landscape and nature shooters who need flexible light control will appreciate its combination of solid construction and reliable performance. The filter is aimed at photographers wanting a shallow depth of field or long exposures in changing light, and it delivers consistent attenuation across a wide range while addressing common practical issues like vignetting and unwanted rotation.

Key Features

• Wide stop range: The ND2-400 design provides a large attenuation span equivalent to CUT 18.66 f-stops so users can dial in shallow depth of field or very long exposures without swapping filters.
• Locking rim: The min-max locking mechanism prevents over-rotation and reduces the chance of the X-effect, giving steadier control when adjusting in the field.
• Superior glass: Eight-layer nano-coated Japanese AGC glass ensures better light transmission and reduced reflections for cleaner images across tones.
• Ultra-slim rim: The precision-engineered, ultra-slim frame minimizes the risk of vignetting on wide-angle lenses while keeping the optical path clear.
• Durable build: Constructed from magnalium, the filter is lightweight yet tough and comes with a lifetime quality backing for long-term use.

Who It's For

The Urth Variable ND is best for landscape, nature, and travel photographers who need quick, precise control of exposure and motion blur without carrying multiple fixed ND filters. Its broad ND2-400 range suits creatives who shoot sunrises, sunsets, waterfalls, and scenes where light changes rapidly.

Serious studio shooters who require absolute color neutrality at every stop or cinematographers preferring dedicated matte boxes may look elsewhere; the variable design can exhibit limitations in extreme cross-polarized lighting or with certain ultra-wide setups despite the ultra-slim rim.

Pros & Cons

Pros

• Robust, well-finished construction that feels high quality and holds up in the field.
• Effective adjustment ability across a very wide stop range for flexible exposure control.
• Nano-coated Japanese AGC glass produces clean images with reduced flare and good transmission.

Cons

• Variable NDs can sometimes show the X-effect on certain lenses at extreme settings, though the locking rim reduces that risk.

Specifications

Our Verdict

The Urth 58mm ND2-400 is a strong, practical choice for photographers seeking a single, durable filter to cover a wide range of exposure control needs. It combines high-quality glass, a useful locking rim, and an ultra-slim frame that reduces vignetting, making it good value for landscape and outdoor shooters who want flexible control without carrying several filters.

Frequently Asked Questions

Will this filter cause vignetting on wide-angle lenses?
The ultra-slim rim is designed to minimize vignetting, though very extreme wide-angle lenses may still show slight falloff depending on lens optics and stacking.

Does the locking rim stop the X-effect entirely?
The locking mechanism significantly reduces over-rotation and the chances of X-effect, but in extreme settings some variable NDs can still show cross-patterns depending on lens and light.

Is the glass durable for field use?
Yes, the 8-layer nano-coated Japanese AGC glass combined with a magnalium frame offers durable performance and easy handling, backed by a lifetime quality guarantee.