Alley in Pisa, Italy

by Lars Kotthoff

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What's the best way to clean a lens filter?

I bought a used lens that came with a filter. The lens is in great shape but the filter clearly has smudges and streaks across the front.

Am I better off buying a new filter?

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2 Answers 2

up vote 3 down vote accepted

What I do is get some lens cleaning fluid, put some on a lint free cloth and wipe the filter. Then I use a microfiber cloth to get any smears off. B&H has an extensive blog post showing how to clean a filter and lens with the tools you'll need.

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Use dish-washing gel to clean your filters.

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