Hoya PROND EX 8 Neutral Density Filter 72mm

Neutral Density Filter Overview

Neutral density (ND) filters are essential photographic tools that allow precise control over the amount of light entering the lens, enabling greater creative control of exposure. For video creators, ND filters help maintain appropriate shutter speeds to match frame rates while preserving depth of field.

ND Filter Categories

• Light density filters (ND2 – ND8): Reduce shutter speed in bright conditions, allowing wider apertures for softer bokeh and reduced depth of field.
• Middle density filters (ND16 – ND200): Enable motion blur effects in lighting conditions that normally restrict shutter speed.
• Deep density filters (ND500 – ND1000 / ND100000): Facilitate extremely slow shutter speeds for creative, surreal imagery beyond human vision.

Hoya PROND EX Series Features

Hoya's PROND EX series uses clear optical glass mounted in a lightweight, precision-crafted aluminum frame with front filter threads for additional filter stacking or lens cap attachment.

ACCU-ND Technology

This exclusive technology ensures equal light reduction across visible and infrared spectrums, eliminating color shifts common in lower-quality ND filters caused by poor materials or manufacturing. This results in consistent color fidelity under various shooting conditions.

Applications in Video Production

For video shooting, especially with cameras like Sony in S-Log mode where ISO cannot go below 800, PROND EX filters such as the EX 8, EX 64, and EX 1000 (or their combinations) are vital to achieve cinematic quality by controlling exposure and shutter speed.

Filter Combinations

Combining PROND EX filters allows photographers to achieve higher ND values for creative effects. For example:

• PROND EX 8 + PROND EX 64 = ND500 effect for surreal imagery.
• PROND EX 8 + PROND EX 1000 = ND8000 effect, enabling capture of the Sun's surface with solid color and visible sunspots without overexposure.

Technical Specifications

• Filter Type: Neutral Density (ND) Filter
• Series: Hoya PROND EX
• Light Reduction: ND8 (3 stops)
• Filter Thread Size: 72 mm
• Material: Clear optical glass with ACCU-ND coating
• Frame: Lightweight aluminum with front filter threads