Hoya Variable Neutral Density Filter 77mm

Hoya 77mm Variable Neutral Density Filter

The Hoya 77mm Variable Neutral Density (ND) Filter offers precise exposure control by varying the amount of light entering the camera from 1.5 to 9 stops (0.45 to 2.7 density for cine use). Its precision-built double ring design allows the outer ring to rotate, adjusting the neutral density effect smoothly within this range. The slim double-ring construction minimizes vignetting when used with wide-angle lenses.

Key Features and Uses

• Control depth of field by enabling wider apertures.
• Create or manage motion blur by selecting slower shutter speeds for perfect blurring effects.
• Replace multiple graded ND filters, saving cost and time by adjusting the effect with a simple rotation instead of changing filters.
• Slow shutter speeds for motion blur effects such as waterfalls, moving vehicles, or panning shots to emphasize the subject.
• Use wider apertures to reduce depth of field, focusing attention on the subject.
• Enable higher ISO films or sensors in bright lighting conditions.
• Allow cine/video cameras with fixed shutter speeds to film in bright environments like beaches or snowy scenes.

Construction and Optical Quality

The filter is made from high-quality optical glass to maintain image clarity. It is housed in a slim-profile aluminum ring designed to reduce vignetting on wide-angle lenses. The filter does not have front accessory threads.

Technical Specifications

• Filter Type: Variable Neutral Density
• Density Range: 0.45 (1.5 stops) to 2.7 (9 stops)
• Shape: Circular
• Diameter: 77 mm
• Front Accessory Thread: Unthreaded
• Filter Material: Optical Glass
• Ring Material: Aluminum
• Coatings: Not specified by manufacturer