NiSi Cine Filter Nano IR GND Hard 4x5.65"""" 1.2

NiSi Cine Filter Nano IR GND Hard 4x5.65" 1.2 – Hard-Edge Graduated ND for Defined Horizons

This NiSi Cine Nano IR GND Hard filter darkens bright parts of a scene, such as skies, while keeping the rest of the frame at a normal exposure. It has a hard-edge transition so you can control exposure precisely where the boundary between bright and dark areas is sharply defined, for example at the horizon or between sea and sky.

Purpose and typical use

Use this hard-edge graduated neutral density filter when the separation between bright and dark areas is distinct and well-defined. In practice, filmmakers and photographers apply it to prevent blown highlights in skies while preserving correct exposure for the foreground and midground.

Optical design and coatings

The filter is optimized for digital sensors. To minimize color shifts, NiSi applies one layer of NiSi Optical Nano Coating to each surface. This coating attenuates both visible and infrared wavelengths, which helps maintain color neutrality and reduce color casts that can occur with longer exposure times.

Construction and durability

The filter is constructed from optical glass to preserve clarity and color fidelity. In addition, the surface treatment provides scratch resistance to protect the glass during use and transport. The filter is 4mm thick and ships with a leatherette pouch for storage and transport.

Key benefits at a glance

• Graduated neutral density effect darkens bright areas (e.g., skies) while leaving the rest of the frame unaffected.
• Hard-edge transition for precise control when the bright/dark boundary is well defined.
• Does not affect the coloration of the image, making it suitable to use alongside other filters.
• Each surface has one layer of NiSi Optical Nano Coating that attenuates infrared light as well as visible wavelengths, helping to maintain color neutrality and suppress color casts with increased exposure times.
• Constructed from optical glass for clarity and faithful color reproduction.
• Scratch resistant surface treatment for improved durability.
• 4mm thickness for robust handling.
• Leatherette pouch included for storage and transport.

FAQ

Question: When should I choose the hard-edge GND over a soft-edge GND?
Answer: Choose the hard-edge GND when the bright and dark areas in your scene have a distinct, straight boundary—such as a horizon or the line between sea and sky—so the sharp transition aligns with that separation and gives predictable results.

Question: How does the Nano IR coating benefit digital capture?
Answer: The Nano IR coating attenuates both visible and infrared wavelengths. As a result, it helps maintain color neutrality and reduces infrared-induced color casts that can appear during longer exposures on digital sensors, leading to cleaner, truer blacks and more faithful colors.

Question: Will this filter change my image colors or limit stacking options?
Answer: No. The filter is designed not to affect image coloration and is ideal for use with other filters. Its optical design and coatings aim to preserve color fidelity even when combined with additional glass.

Question: What comes in the box and how can I protect the filter between uses?
Answer: The filter includes a leatherette pouch for storage and transport. For added protection, keep it in the pouch when not in use and handle the glass by the edges to maintain the scratch-resistant surfaces.