Neutral Density Variable Filter K&F 52mm Fader ND2–ND2000 (52 mm, gray)

The Neutral Density Variable Filter K&F 52mm Fader ND2–ND2000 is a screw-in gray filter designed to fit lenses with a 52 mm thread. It provides continuously adjustable light reduction approximately from ND2 to ND2000, allowing photographers and videographers to control exposure when shooting in bright conditions, to use wider apertures for shallow depth of field, or to achieve long-exposure effects such as motion blur in water or clouds. The filter is constructed for combined photographic and video use and suits compact setups where flexible light control is required.

Advantages

This variable ND filter gives a wide adjustment range in a single accessory, removing the need to carry multiple fixed-density filters. The screw-in 52 mm mounting ensures compatibility with lenses that share this thread size and provides a secure fit. The neutral gray coloration maintains color neutrality while reducing overall scene brightness, and the continuous control enables fine-tuning of exposure without changing aperture or shutter speed independently.

Suitable for

• Long-exposure landscape photography to smooth water and clouds
• Video work requiring controlled shutter angles or motion blur in bright light
• Portraits or shallow depth-of-field shots in strong daylight using wide apertures
• Time-lapse sequences where consistent light reduction is needed

Key specifications

• Filter type: Variable neutral density (fader ND)
• Thread size: 52 mm screw-in mount
• Density range: approximately ND2 to ND2000 (continuous adjustment)
• Color: neutral gray to preserve color balance
• Use: photographic and video applications for exposure control

How to use

Screw the filter onto the front thread of a 52 mm lens until it is securely seated. Rotate the outer ring to adjust the density between ND2 and ND2000 while observing the exposure changes in the viewfinder or live view. For long exposures, set the desired aperture and shutter speed after selecting the ND strength; for video, adjust the filter to achieve the required shutter angle or motion rendering. Avoid excessive rotation beyond the designed travel to prevent cross-polarization effects that can occur at extreme settings.

Usage recommendations

Inspect the lens thread and filter threads for dust before mounting, and use a lens cap or protective case when the filter is not in use. When composing, check for vignetting on wide-angle lenses and test for any color shift at different densities. For critical color work, verify white balance after applying the filter and make incremental adjustments while rotating to find the optimal density for the scene.