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NiSi 133283 40.5mm IR ND64 Nano Filter — main product image
NiSi 133283 40.5mm IR ND64 Nano Filter
NiSi 133283 40.5mm IR ND64 Nano Filter
NiSi 133283 40.5mm IR ND64 Nano Filter
NiSi

NiSi 133283 40.5mm IR ND64 Nano Filter

★★★★★4.4 (93 reviews)

Six stops of light reduction in a slim 40.5mm optical glass frame, built for long-exposure landscape work where color accuracy can't be sacrificed.

$45.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The NiSi 40.5mm HUC PRO Nano IR ND64 is a circular neutral density filter that reduces incoming light by 6 stops — an ND 1.8 density factor. In practical shooting terms, that means extending a correctly exposed 1/500s shutter speed to approximately 1/8s under the same aperture and ISO conditions, enabling motion blur effects on water, clouds, and pedestrians without reducing aperture below diffraction-inducing territory. The optical glass construction and anti-reflective multi-coating maintain edge-to-edge sharpness and minimize flare from strong light sources near the frame. The integrated IR cut layer is the distinguishing technical feature: it blocks near-infrared wavelengths that standard ND glass passes through, preventing the red/magenta color cast that plagues uncoated ND filters at longer exposures, particularly in scenes with large sky coverage.

This filter is designed for landscape and long-exposure photographers shooting on compact mirrorless systems and small-sensor cameras with 40.5mm filter threads — common on Sony E-mount kit lenses, Olympus Micro Four Thirds glass, and select Fujifilm XF lenses. The slim frame's double-sided threading allows combining the ND64 with a circular polarizer or UV protector for versatile creative control without swapping filters. Build quality is field-grade: the aluminum frame handles temperature swings and physical knocks, and the nano coating sheds rain and sea spray cleanly. For photographers working coastal environments, misty waterfalls, or golden-hour landscapes where color accuracy is non-negotiable, the IR protection layer separates this filter from budget ND glass that requires significant post-processing correction.

Key Features

PERFECT FIT: The NiSi ND64 IR filter is meticulously crafted to effortlessly fit lenses and adapters equipped with a standard filter thread. Simply locate the 'ø' symbol on your lens or lens cap to confirm compatibility with this 40.5mm ND filter. Ideal for discerning photographers, it seamlessly integrates into your camera gear, ensuring optimal performance and convenience. Elevate your photography with this versatile neutral density filter, designed to meet the demands of professionals.

SLIM, STACKABLE DESIGN FOR EASY USE: Designed with a slim aluminum frame, double-sided threading, and knurled edges, the NiSi ND64 filter is easy to install, stack, and combine with other ND filters, UV filters, or CPL filters for maximum versatility. This lightweight yet durable 40.5mm ND filter ensures a secure fit and effortless handling, making it an essential tool for photographers using neutral density filters in creative setups.

FULL CREATIVE CONTROL WITH 6 STOPS: The 1.8 density from the ND64 provides a 6-stop reduction of light entering the lens, enabling precise exposure control for creative effects like motion blur, smoother water flow, and enhanced depth of field. This neutral density filter is perfect for capturing dynamic long-exposure shots. It is ideal for professionals and hobbyists to use this 40.5mm ND filter or experiment with their ND cameras for artistic results.

ADVANCED INFRARED PROTECTION: The NiSi ND64 filter features an advanced infrared protection coating that eliminates unwanted red color casts caused by small apertures, ensuring vivid tones and true-to-life colors. This ND filter 40.5mm is a high-quality IR camera filter, ideal for achieving consistent color balance in every shot, making it a trusted tool for photographers using infrared camera lens filters or neutral density filters for creative and professional photography.

DURABLE, WATERPROOF, AND EASY TO MAINTAIN: Built with a robust nano waterproof coating, this ND camera filter resists scratches, water, and fingerprints, ensuring durability in harsh outdoor environments. The ND filter 40.5mm is easy to clean and maintain, providing long-lasting performance for photographers. This nano filter is essential for professionals needing reliable, high-quality neutral density filters for photography.

Specifications

Filter Type
ND64 IR
Filter Factor
6 stops
Density
1.8
Size
40.5mm
Frame Material
Aluminum
Features
Nano waterproof coating, Infrared protection, Double-sided threading, Knurled edges

Pros & Cons

👍 Pros

  • 6-stop (ND 1.8) density provides 64x exposure multiplication, enabling long-exposure motion blur in daylight without stopping down to diffraction-limiting apertures
  • IR protection coating eliminates infrared-induced red color casts at small apertures, preserving accurate RAW color channels without post-processing correction
  • HUC PRO nano waterproof coating actively repels water and fingerprints, keeping the optical surface clean during wet-weather landscape sessions
  • Slim aluminum frame with double-sided threading supports filter stacking with UV or CPL filters without changing the mounting thread
  • Optical glass construction maintains edge-to-edge sharpness and avoids the color shift common in lower-grade resin ND alternatives

👎 Cons

  • 40.5mm diameter is a small, specialized thread size found primarily on compact and mirrorless kit lenses — photographers with multiple lens diameters will need separate filter sizes or step-up rings
  • Slim frame at 40.5mm remains susceptible to vignetting when stacked with a second filter on wide-angle lenses shooting at the widest focal length
  • Nano coating resists water and fingerprints but is not scratch-resistant — contact with abrasive surfaces in a field bag will degrade the optical surface over time
  • A 6-stop single ND may be insufficient for extreme long-exposure daytime work requiring 10 or 15 stops, necessitating an additional ND in the kit
  • The small 40.5mm knurled frame is difficult to grip and thread precisely onto lens barrels in cold or wet field conditions

Frequently Asked Questions

A 6-stop reduction multiplies your exposure time by 64x. In bright midday sun at ISO 100, f/8, that turns a 1/500s base exposure into roughly 1/8s — enough to introduce motion blur in flowing water or moving clouds. In overcast conditions, 6 stops can push you into multi-second exposures for silky waterfall and seascape shots without dropping to the smallest apertures where diffraction softens the image.
Without IR blocking, neutral density glass at high densities can allow near-infrared wavelengths to pass through disproportionately, causing a warm red-magenta color cast — particularly noticeable in skies and foliage. NiSi's IR cut coating on the ND64 eliminates this shift, so your white balance and raw color channels remain accurate across the tonal range without requiring heavy correction in post.
Yes — the slim aluminum frame includes double-sided threading specifically for stacking. However, stacking two filters at 40.5mm with wide-angle lenses risks vignetting in the corners at the wider end of the focal length range. Test your widest-angle lens before committing to stacked filter use in the field.
The HUC PRO nano coating repels water and resists fingerprints reliably under light rain and sea spray, and the hydrophobic surface makes field cleaning with a microfiber cloth effective. The coating is not abrasion-proof — sand or grit dragged across the glass surface will scratch it, so a protective case is essential in coastal and desert environments.
The knurled edge provides a meaningful grip improvement over smooth-rim filters, making installation feasible with bare hands in cold weather. Gloved hands will still find a 40.5mm frame challenging due to the small diameter — this is a thread-size limitation, not a frame design flaw.

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