Description
Article no.: 29117
Use the NiSi ATHENA Full Spectrum FS ND Rear PL Filter to control exposure and preserve color fidelity when shooting with ATHENA PL mount lenses. This FS ND 1.5 (5 stop) filter reduces incoming light by five stops, enabling slower shutter speeds and wider apertures in bright conditions while maintaining true-to-life colors.
Filmmakers use the NiSi FS ND to manage exposure without compromising creative choices. For example, by cutting five stops of light you can keep a cinematic shutter angle or widen the aperture to separate subjects from backgrounds. Moreover, because the filter maintains color fidelity across the spectrum, you preserve the look you capture on set and spend less time correcting color later.
The FS ND 1.5 is a rear-mounted PL filter tailored for NiSi ATHENA PL Mount Lenses. Therefore, it aligns with the lens design to maintain image quality and proper optical performance when installed at the rear of the lens.
The filter includes a suction cap tool to assist with installation and removal. This tool helps you swap filters quickly on set while protecting the filter surface from fingerprints. In short, the included tool makes field handling faster and cleaner.
NiSi builds this filter from premium optical materials and applies a Multi Ti Nano coating. These features deliver low reflection and anti-scratch resistance, which helps the filter endure professional production conditions and maintain consistent optical performance over time.
| Density | Stop Reduction |
|---|---|
| 0.3 | 1 stop |
| 0.6 | 2 stop |
| 0.9 | 3 stop |
| 1.2 | 4 stop |
| 1.5 | 5 stop |
| 1.8 | 6 stop |
| 2.1 | 7 stop |
| 2.4 | 8 stop |
Question: Is this filter compatible with non-ATHENA PL mount lenses?
Answer: This FS ND rear PL filter is specifically designed for NiSi ATHENA PL mount lenses and is tailored for rear mounting on those lenses. For other lens mounts, you should check compatibility or contact us for sourcing options.
Question: Will the filter cause color shifts that require correction in post?
Answer: The filter is a Full Spectrum design intended to maintain color fidelity across the spectrum, so it minimizes color shift and reduces the need for post-production color correction.
Question: What does the included suction cap tool do?
Answer: The suction cap tool is provided to help you change the rear-mounted filter quickly and without leaving fingerprints, allowing safer and faster handling on set.
Question: How does the filter affect creative choices like shutter speed and aperture?
Answer: By reducing light by five stops (for the 1.5 version), the filter lets you use slower shutter speeds and larger apertures in bright conditions, enabling cinematic motion blur and greater control over depth of field.