Neutral density camera filter Calumet CALSAN1667 — 67 mm, single-piece

The Calumet CALSAN1667 is a single-piece 67 mm neutral density (ND) camera filter designed to reduce the amount of light entering the lens evenly, enabling longer shutter speeds or wider apertures for motion blur, controlled exposure and shallow depth-of-field effects. Finished in a black/transparent appearance and featuring 28 layers of multi-coating, this ND filter preserves image quality while offering additional surface protection for the front element of the lens. It fits lenses with a 67 mm filter thread and is suitable for photographers and videographers who need predictable light reduction and reliable optical performance.

Advantages

The Calumet CALSAN1667 provides uniform light attenuation to help you extend shutter times and control depth of field without introducing noticeable color casts. Its 28-layer coating improves light transmission, reduces reflections and ghosting, and helps resist water and surface scratches. The single-piece construction and ultra-slim profile reduce vignetting on wide-angle lenses while the neutral density characteristic lets you maintain accurate exposure settings in bright conditions.

Suitable for

• Landscape photography — long exposures to smooth water and clouds
• Portraits — using wide apertures in bright light for shallow depth of field and pleasing bokeh
• Architecture — long exposures to minimize moving people and vehicles
• Video production — controlling shutter speed and aperture for natural motion and cinematic depth of field
• Outdoor shooting in bright conditions — preventing overexposure on sunny days or reflective surfaces

Key specifications

• Filter type: Neutral Density (ND)
• Diameter: 67 mm (screw-in thread)
• Optical density: ND16 (reduces incoming light by 4 stops)
• Coating: 28 layers multi-coating for reduced reflections and improved transmission
• Finish: black/transparent appearance
• Construction: single-piece ultra-slim filter to minimize vignetting
• Surface properties: water-repellent and scratch-resistant coatings

How to use

Screw the Calumet CALSAN1667 onto the front of a lens with a 67 mm filter thread until it is hand-tight; avoid over-tightening. Compose and meter the scene as usual. Because the ND16 filter reduces light by approximately four stops, adjust exposure settings accordingly: increase shutter time or open the aperture to achieve the desired motion blur or depth-of-field effect, or raise ISO if necessary. For long exposures, stabilize the camera on a tripod and use a remote release or timer to avoid camera shake. If stacking filters, be mindful of potential vignetting on wide-angle lenses.

Usage recommendations

Use the Calumet ND16 when you need consistent four-stop light reduction: for silky water effects, controlled background blur in bright light, or maintaining cinematic shutter speeds while keeping wide apertures. Clean the coated surfaces with a soft microfiber cloth and a recommended lens cleaner to preserve the multi-coating performance and water-repellent properties.