Best Neutral Density Filters for Cameras

A neutral density filter is simply dark, neutral glass that cuts light without shifting color, so you can slow the shutter for silky water, or open the aperture in daylight, without blowing out the shot. This guide covers our chosen picks across the main types in the feed: variable ND faders, a fixed ND set, a 3-in-1 kit, a magnetic gimbal kit, a slim compact fader and even ND gel sheets for lighting. Every pick lists its real stop range and thread size, because the filter has to physically match your lens.

Fixed versus variable ND: which one to buy

A fixed ND is one density, such as ND8 for 3 stops. It gives clean, repeatable results and no moving parts, but you carry several filters and swap them as the light changes. A variable ND, like the ND2 to ND400 faders here, rotates through roughly 1 to 9 stops in one filter, which is faster and lighter to carry. The trade off is that variable glass can darken unevenly or add a faint color cast at its strongest setting, so many shooters keep a variable ND for convenience and a fixed ND when color accuracy matters most.

ND stops and when to use them

Each stop of ND halves the light. ND2 is 1 stop, ND4 is 2 stops, ND8 is 3 stops, and the scale keeps doubling up to around 9 stops at ND400. Light NDs of 1 to 3 stops are enough to open your aperture for shallow depth of field on a bright day, or to hold a steady video shutter. Stronger NDs of 6 stops and up are what you want for long exposures of waterfalls, moving clouds or crowds, where the goal is seconds of blur in full daylight. The fixed set here steps you through the lighter end, while the variable faders reach the strong end for long exposure work.

Thread size and matching your lens

The single most common mistake is buying the wrong size. A screw-in ND filter has a thread measured in millimetres, and it must match the filter thread of your lens. Check the front of the lens or the inside of the lens cap for a number next to the diameter symbol, for example 58mm or 77mm. The picks here span 40.5mm, 58mm, 67mm and 77mm, so choose the one that matches your lens, or plan for a step ring to adapt a larger filter down. The magnetic kit is different again: it fits specific DJI Osmo Pocket gimbals rather than a lens thread, and the gel sheets are cut to fit lights, not lenses.

Glass quality, coatings and color cast

Because an ND sits in front of every shot, its glass quality shows up in your images. The NEEWER faders list multiple coatings with a water and scratch resistant finish, and the 3-in-1 kit uses multicoated optical glass in an aluminum alloy frame, which helps shed water and resist marks. No ND is perfectly neutral, and cheaper or very strong filters can leave a slight warm or cool tint, but a small shift is easy to correct with a white balance adjustment in editing. If flare or ghosting matters to you, coated glass and a lens hood help keep contrast clean.