Neutral Density Filter Hoya HD Mk II IRND64 72mm

Hoya HD Mk II IRND64 72mm neutral density filter reduces incoming light by 6 stops to enable long exposures and wider apertures in bright conditions. The 72mm-thread filter is built with multi-coated HD glass to minimize reflections and maintain color neutrality while limiting infrared contamination. It is designed for photographers who need precise exposure control for motion blur, creative depth-of-field effects and controlled highlights when shooting outdoors.

Advantages

The HD Mk II IRND64 delivers a consistent 6-stop attenuation across the visible spectrum while reducing infrared leakage that can cause color shifts during long exposures. Multi-layer coatings on both surfaces increase light transmission quality and reduce ghosting and flare. The precision-ground optical glass preserves sharpness and contrast, and the slim, threaded metal mount fits lenses with a 72mm filter thread without vignetting on most wide-angle lenses.

Suitable for

• Landscape long-exposure photography (waterfalls, seascapes, clouds)
• Wide-aperture portraits in bright daylight to achieve shallow depth of field
• Architecture and urban scenes requiring motion blur or controlled highlights
• Time-lapse sequences with reduced exposure variability

Key specifications

• Filter type: Neutral Density (ND) with infrared reduction
• Light reduction: 6 stops (ND64)
• Thread diameter: 72 mm
• Optical material: high-definition ground glass
• Coatings: multi-layer anti-reflective coatings on both sides
• Mount: slim metal threaded frame to minimize vignetting

How to use

Attach the Hoya HD Mk II IRND64 to any lens with a 72mm filter thread by screwing the filter into the front of the lens until secure. Meter the scene or use live view with exposure simulation to determine the shutter speed or aperture needed after applying the 6-stop reduction. For long exposures use a tripod to prevent camera shake and, where available, a cable release or camera timer to avoid contact-induced blur. In bright daylight, combine the filter with intended aperture and ISO settings to reach the desired motion blur or depth-of-field effect.

Usage recommendations

Clean the filter with a soft microfiber cloth and appropriate lens cleaning fluid to maintain coating performance. When stacking filters, be aware of increased potential for vignetting on wide-angle lenses. Store the filter in its protective case when not in use to avoid scratches and preserve coating integrity.