How to Clean and Store ND Lens Filters Properly
By Ritz Camera | Published: 2026-10-19
Category: Tips & Care
Learn the right way to clean and store neutral density filters to keep your images sharp and your gear safe. Includes step-by-step care tips and common mistakes to avoid.
Quick answer
To keep your ND filters performing well, clean them with a blower, microfiber cloth, and lens-safe solution, then store them in a padded case or sleeve away from heat and humidity.
Why proper ND filter care matters
A dirty or scratched neutral density filter can reduce contrast, introduce flare, and soften your images. Because ND filters sit in front of your lens, any dust, smudges, or haze directly affect what reaches your sensor.
Storing filters properly also prevents scratches and coating damage. Even a small scratch can degrade image quality, and replacing a high-quality filter like the Tiffen 72mm ND is more expensive than taking a few extra minutes to care for it.
Trade-offs: cleaning vs. replacing
No filter is immune to wear. Over time, even careful cleaning can leave micro-scratches. If you notice persistent haze or contrast loss that cleaning doesn't fix, it may be time to replace the filter.
When you do need a new one, pay attention to the filter thread size. A 72mm filter fits lenses with a 72mm thread, and using the wrong size can cause vignetting or mounting issues.
Step-by-step ND filter cleaning and storage
- Blow off loose dust: Use a rubber bulb blower to remove dust and grit from both sides of the filter. Do not use compressed air, which can spray propellant or moisture onto the glass. Never wipe a dry filter with a cloth before blowing off dust—this can grind particles into the coating.
- Brush away remaining particles: If dust remains, use a soft lens brush with gentle strokes. Start from the center and move outward. Avoid touching the glass with your fingers, as oils can be hard to remove. Check the brush is clean before each use; a dirty brush can reintroduce grit.
- Apply cleaning solution to a cloth, not the filter: Put one or two drops of lens cleaning solution on a microfiber cloth, then wipe the filter in a circular motion from the center outward. Do not spray directly onto the filter, as liquid can seep into the ring and damage the coating. Use a fresh area of the cloth for each pass to avoid spreading oils or residue.
- Dry with a dry microfiber cloth: Use a clean, dry microfiber cloth to gently buff the filter until no streaks remain. If smudges persist, repeat the cleaning step. If streaks remain, the cloth may be dirty; wash it according to the manufacturer's instructions before using again.
- Store in a padded case or sleeve: Place the filter back in its original case or a padded filter wallet, with the glass facing upward to avoid contact with surfaces. Keep it away from heat, humidity, and direct sunlight. Always store filters with their caps on, if included, to prevent dust and scratches.
Product facts
- Tiffen 72mm Neutral Density 0.6 Lens Filter: The Tiffen 72mm Neutral Density 0.6 Lens Filter reduces the amount of light passing through the camera lens without changing the color of the scene. Because it's a precision optical filter, keeping it clean and scratch-free is essential to maintaining its color-neutral performance and image sharpness.
Tiffen 72mm Neutral Density 0.6 Lens Filter
