NiSi Filter S5 Circular ND64+CPL (for S5 Holder)

NiSi Filter S5 Circular ND64+CPL (for S5 Holder) – 6‑stop exposure reduction for creative long exposures

This NiSi S5 Circular ND64+CPL is designed for use with the NiSi S5 150mm filter holder system. It combines a 6‑stop neutral density (ND64) effect with a circular polarizer (CPL) in a single screw‑in filter that can thread into a NiSi S5 adapter ring after the kit’s included Pro Screw‑In Circular Polarizer has been removed. The filter gives photographers a reliable 6‑stop exposure reduction while also reducing reflections and increasing saturation in skies and foliage.

Key benefits

• Provides a 6‑stop exposure reduction (ND64) for longer shutter speeds.
• Combines ND and circular polarizer functions in one filter for versatile control.
• Reduces glare and reflections from non‑metallic surfaces and increases color saturation.
• Maintains true‑to‑life color with high‑quality optical glass and coatings.

Materials and coatings

NiSi manufactures the filter from high‑quality optical glass, not resin. It features the NiSi Pro Nano Coating to reduce unwanted reflections and to provide a waterproof and scratch‑resistant surface. Additionally, the filter includes an infrared protection coating layer to eliminate infrared light that can cause unwanted red color casts when shooting at small apertures.

Practical use cases

Use this combined ND64+CPL when you want to slow exposure time or open aperture to control depth of field and to convey movement. For example:

• During the golden hour, apply the 6‑stop density to create 1–2 minute exposures for very smooth water or cloud movement.
• Before the golden hour, use the 6‑stop filter to capture dynamic water while retaining some texture.
• Apply the polarizer function to reduce haze from scattered polarized light and to cut reflections from non‑metallic surfaces, improving saturation of skies and foliage.
• Employ the ND function when scene contrast between highlights and shadows is too high for a single exposure.

How it fits your NiSi S5 system

The filter is specifically made to screw into a NiSi S5 adapter ring and is intended for the NiSi S5 150mm filter holder system. Install it by removing the kit’s Pro Screw‑In Circular Polarizer and then threading this filter into the S5 adapter ring. Note that this filter cannot be used in a NiSi S6 filter holder.

Optical performance and color

NiSi ND filters are designed to avoid affecting the coloration of the image. The combination of optical glass construction and nano coatings aims to deliver a true‑to‑life color rendition while preserving fine detail. Also, the infrared protection coating helps bring back natural color by eliminating unwanted infrared contamination through the lens.

Installation tips

1. Remove the kit’s Pro Screw‑In Circular Polarizer from the S5 adapter ring.
2. Screw this NiSi S5 Circular ND64+CPL into the S5 adapter ring securely.
3. Rotate the polarizer element to adjust polarization effects while keeping in mind the ND effect is fixed.

FAQ

Question: Is this filter compatible with my NiSi S5 holder?
Answer: Yes. The filter is designed to screw into a NiSi S5 adapter ring for the NiSi S5 150mm filter holder system.

Question: How strong is the ND effect and when would I use it?
Answer: The ND64 provides a 6‑stop exposure reduction (1.8 density). Use it to slow shutter speeds for smooth water and clouds, to shoot long exposures during the golden hour, or to open your aperture for shallow depth of field in brighter light.

Question: Does the polarizer affect colors or reflections?
Answer: The circular polarizer reduces reflections and glare from non‑metallic surfaces and can increase saturation in skies and foliage. NiSi’s optical glass and coatings aim to maintain true‑to‑life color without unwanted color shifts.

Question: Will this filter cause infrared color casts at small apertures?
Answer: NiSi includes an infrared protection coating layer on this filter to eliminate infrared light that can otherwise create unwanted red color casts when shooting at small apertures.

Question: Can I use this filter with the NiSi S6 holder?
Answer: No. This specific filter is not compatible with the NiSi S6 filter holder and cannot be used in S6.