37mm Clip-On ND2-400 Variable ND Filter for Smartphones & DSLRs

Capture Stunning Solar & Astronomical Photos with Your Smartphone

Transform your mobile camera into a powerful solar imaging tool with this 37mm Clip-On ND2–400 Adjustable Neutral Density Filter. Whether you're photographing eclipses, sunsets, or bright outdoor scenes, this variable ND filter gives you full control over light exposure — right from your pocket.

Key Features

• Wide ND Range (ND2–400): Continuously adjust light transmittance from 2 to 400 stops, giving you precise exposure control for any lighting condition — from golden hour to direct sunlight.
• 2-in-1 Versatility: Attaches to virtually any smartphone via the universal clip design. Remove the clip and it threads directly onto any DSLR or mirrorless camera with a 37mm lens mount.
• Premium Glass Construction: Crafted from quality optical-grade light-reducing glass that effectively manages light transmission and minimises image distortion.
• Ultra-Compact & Portable: Weighing next to nothing, this filter slips easily into a pocket or purse. Take it anywhere — eclipse viewings, outdoor shoots, astronomy events, and more.
• Universal Smartphone Compatibility: Works with Apple iPhone, Samsung, Motorola, LG, HTC, Nokia, Sony Ericsson, and other popular smartphone brands.
• CE Certified: Meets CE safety and quality standards for your peace of mind.

Specifications

What's in the Box

• 1 × Clip-On ND2–400 Smartphone Lens Filter
• 1 × Universal Clip
• 1 × Protective Lens Cap
• 1 × Storage Bag

The Perfect Gift for Astronomy Enthusiasts

Ideal for friends, family members, or coworkers who love stargazing, eclipse photography, or outdoor mobile videography. This compact filter makes a thoughtful and practical gift for any photography hobbyist.

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Learn More About Safe Solar Observation

For guidance on safe solar and eclipse photography, visit the NASA Solar System Exploration – The Sun page for expert tips and safety information.

Learn more: Photographic filter

Frequently Asked Questions

Q: Will this ND2–400 clip-on filter fit my iPhone or Samsung Galaxy?

A: Yes! The universal clip design is compatible with virtually all major smartphone brands, including Apple iPhone, Samsung Galaxy, LG, Motorola, HTC, Nokia, and more. Simply clip it over your phone's camera lens for an instant fit.

Q: Can I use this filter with a DSLR or mirrorless camera?

A: Absolutely. Without the clip attached, this filter features a standard 37mm thread that screws directly onto any DSLR or mirrorless camera lens with a matching 37mm filter thread, making it a true 2-in-1 accessory.

Q: What can I photograph with an ND2–400 variable filter?

A: The wide ND2–400 range lets you photograph bright subjects like the sun, solar eclipses, daytime long exposures, waterfalls, and dramatic sky scenes — all without overexposing your shots. It gives you full creative control over shutter speed and depth of field in bright conditions.

Q: Is the filter reusable and easy to store?

A: Yes. It comes with a protective lens cap and a compact storage bag, keeping the glass surface safe when not in use. The lightweight design makes it easy to carry in a pocket, bag, or camera kit.