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Match thread size to your lens.

This guide is built from Amazon product listings and maker specs, not our own testing, so confirm compatibility, mount type and current price on each product page.

Prices are approximate and were shown on Amazon.com on November 2, 2026; check the current price.

Last updated: November 2, 2026.

Concept illustration of neutral-density camera filters with circular and rectangular designs.
AI-generated conceptual illustration; not a photograph of a specific product or a hands-on test.

Quick Picks

Product Type Best for
K&F CONCEPT 72mm Ultra-Low Reflectivity Variable ND2-400 Variable ND filter long exposures
K&F CONCEPT 67mm Variable ND2-400 Filter Variable ND filter long exposures
Square ND and Graduated Filter Set Square filter kit long exposures
24-Piece Square ND and Graduated Filter Kit Square filter kit long exposures
K&F CONCEPT 55mm UV/CPL/ND Filter Kit Filter kit long exposures
K&F CONCEPT 58mm UV/CPL/ND2-400 Filter Kit Filter kit long exposures

Our Picks

1. K&F CONCEPT 72mm Ultra-Low Reflectivity Variable ND2-400

A K&F CONCEPT 72mm Ultra-Low Reflectivity Variable ND2-400 (variable nd filter), per the listing. It showed at about $86 on Amazon.com on November 2, 2026.

Good for: long exposures. Watch out: Higher price.

Check on Amazon

2. K&F CONCEPT 67mm Variable ND2-400 Filter

A K&F CONCEPT 67mm Variable ND2-400 Filter (variable nd filter), per the listing. It showed at about $39 on Amazon.com on November 2, 2026.

Good for: long exposures. Watch out: Cross-polarization possible.

Check on Amazon

3. Square ND and Graduated Filter Set

A Square ND and Graduated Filter Set (square filter kit), per the listing. It showed at about $27 on Amazon.com on November 2, 2026.

Good for: long exposures. Watch out: Needs a holder.

Check on Amazon

4. 24-Piece Square ND and Graduated Filter Kit

A 24-Piece Square ND and Graduated Filter Kit (square filter kit), per the listing. It showed at about $37 on Amazon.com on November 2, 2026.

Good for: long exposures. Watch out: Needs a holder.

Check on Amazon

5. K&F CONCEPT 55mm UV/CPL/ND Filter Kit

A K&F CONCEPT 55mm UV/CPL/ND Filter Kit (filter kit), per the listing. It showed at about $38 on Amazon.com on November 2, 2026.

Good for: long exposures. Watch out: Check thread size.

Check on Amazon

6. K&F CONCEPT 58mm UV/CPL/ND2-400 Filter Kit

A K&F CONCEPT 58mm UV/CPL/ND2-400 Filter Kit (filter kit), per the listing. It showed at about $36 on Amazon.com on November 2, 2026.

Good for: long exposures. Watch out: Check thread size.

Check on Amazon

How to Choose

Thread size

Match your lens front thread, printed on the lens.

Coatings

Multi-coated filters reduce reflections.

Quality

Cheap filters can soften the image.

Frequently Asked Questions

Do I need a UV filter?

For protection, optionally.

What size?

Check the front of the lens.

Step-up rings?

Let one filter fit several lenses.

Bottom Line

Variable ND is convenient; fixed ND is sharper.

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