Used ND filters (neutral density filters)

An ND filter is optical glass that goes in front of your lens, so the most important question is always: does it fit my lens? Check the filter size (in mm), which is usually marked on your lens cap or the front of the lens, and choose that same size — or use a step-up ring. Variable ND filters are handy if you work with several lenses, while a fixed ND filter is generally a little more neutral and predictable. Popular models at the moment are the LEE Big Stopper for extremely long shutter speeds, the LEE Little Stopper as a slightly lighter version, and the Hoya 82mm Variable Density II Filter for steplessly adjustable strength.

What should you look out for in a used ND filter?

Check the glass for scratches, and with coatings (such as B+W's MRC and Nano layer or the coatings from Hoya and NiSi) look for wear. A slight colour cast can occur with cheaper or strongly variable filters, but the brands here are known precisely for their neutral rendering. Also check that the thread runs cleanly and the filter doesn't bind. All our used filters are professionally inspected, so you know in advance what condition your purchase is in.

Who is an ND filter for?

Landscape and architecture photographers use ND filters for long shutter speeds in daylight; video makers use them to maintain a fixed shutter speed with a wide-open aperture. If you work a lot with system filters, also look at the other sections under Filters, such as polarising filters and UV filters, and at the broader Accessories category for filter holders and step-up rings.

With every used ND filter you get at least 12 months' warranty and a 14-day return period, so you can take your time testing whether the filter does what you want.