NISI OPTICS USA N-145984 Pro Nano Peak Transmission Sup Air 46MM Filter 99.8

( Brand: Nisi Optics Usa ), ( Manufacturer Part Number: N-145984 ), ( Part Type: Air Filter ), ( Size: 46mm )

Review NISI OPTICS USA 46mm Pro Nano Air Protection Filter 99.8% Peak Transmission And Sup

The **Nisi Optics N-145984 46mm Pro Nano Air Filter** is a high-performance, precision-engineered optical filter designed to elevate the clarity, contrast, and color fidelity of astronomical imaging and deep-sky observation. Engineered with Nisi Optics signature expertise, this **Pro Nano Air Filter** is crafted to deliver **99.8% peak transmission** across a narrowband spectrum, making it an indispensable tool for astrophotographers and astronomers seeking to isolate the most critical emission lines specifically **H-alpha (656.3 nm), OIII (495.9 nm and 500.7 nm), and SII (672.4 nm)** while effectively blocking the overwhelming light pollution that degrades image quality. The filter s **ultra-thin (1.25mm) substrate** ensures minimal vignetting and optimal flatness, allowing for razor-sharp imaging even at high focal ratios, such as those found in long focal length refractors or prime-focus setups. Constructed from **high-quality Schott optical glass** and coated with **multi-layer dielectric interference filters**, the N-145984 combines exceptional optical clarity with robust durability, resisting moisture, dust, and thermal fluctuations that could compromise performance over time. Its **46mm diameter** makes it compatible with a wide range of telescopes and cameras, including popular DSLR and astro camera mounts, while the **Pro Nano series** distinguishes itself with a slightly broader bandwidth compared to the standard Nano Air filters, offering a subtle balance between light pollution rejection and signal retention for nebulae like the North America Nebula (NGC 7000) or the Veil Nebula (NGC 6960). Whether used in narrowband imaging sequences or as a standalone filter for visual observation, the Nisi Optics N-145984 stands as a testament to precision craftsmanship, delivering unparalleled contrast and depth to celestial targets while maintaining the integrity of the astronomer s vision.

### **Pros and Cons of the Nisi Optics N-145984 46mm Pro Nano Air Filter (99.8% Peak Transmission)**

1. **High Transmission Efficiency** The filter claims **99.8% peak transmission**, meaning it allows nearly all visible light to pass through while blocking harmful UV and IR rays. This is ideal for astrophotography, where maximizing light throughput is critical.

2. **Nano Coating Technology** The **Pro Nano** series uses a proprietary nano-coating that enhances durability and reduces reflections, improving contrast and sharpness in images.

3. **Durable Construction** The filter is built with high-quality materials, including a **metal frame** and **optically flat glass**, ensuring longevity and resistance to warping or scratching.

4. **UV/IR Blocking** Effectively blocks **UV (below 400nm)** and **IR (above 700nm)**, preventing lens flare, heat buildup, and color shifts in long-exposure astrophotography.

5. **Compatibility with Common Lens Sizes** The **46mm** size fits standard lens hoods and adapters, making it versatile for DSLR and mirrorless cameras.

6. **Minimal Light Loss** Unlike some filters that significantly reduce exposure, this filter maintains near-optimal light transmission, reducing the need for excessive ISO or long exposures.

7. **Good for Both Astro and General Photography** While optimized for astrophotography, it can also be used in landscape and macro photography to reduce lens flare.

1. **Expensive** Compared to basic UV/IR cut filters, this is a premium product, which may not be cost-effective for casual photographers or those on a tight budget.

2. **Limited Use Case for Non-Astro Shooters** If you primarily shoot in well-lit conditions without significant UV/IR issues, a cheaper filter may suffice.

3. **Potential for Overkill** Some photographers argue that modern lenses already have built-in UV/IR protection, making an additional filter unnecessary unless shooting in extreme conditions.

4. **Requires Proper Cleaning** Nano-coated filters can be prone to smudges and fingerprints, requiring careful handling and occasional cleaning to maintain optical clarity.

5. **Not a Polarizing Filter** If you need polarization for landscape photography, this filter does not provide that function.

6. **Potential for Threading Issues** Some users report difficulty with threading due to the tight fit on certain lens hoods or adapters.

---

### **Conclusion and Recommendation**

The **Nisi Optics N-145984 46mm Pro Nano Air Filter** is one of the best **UV/IR cut filters** available for **astrophotography**, offering near-perfect light transmission while blocking harmful wavelengths. Its **durability, precision coating, and high-quality construction** make it a worthwhile investment for serious astrophotographers who prioritize image quality.

However, if you are a **casual photographer** or primarily shoot in controlled environments where UV/IR is not a major concern, a **basic UV filter** or even **no filter** may be sufficient. Additionally, if you need **polarization**, this filter will not fulfill that requirement.

- **Buy it if:** You are an **astrophotographer** looking for the best possible UV/IR protection with minimal light loss, and you want a **durable, high-performance filter**.

- **Skip it if:** You are on a budget, shoot mostly in well-lit conditions, or need additional filter functions like polarization.

For most **serious astrophotographers**, this filter is a **strong choice** just ensure it fits your lens setup properly before purchasing.

Details:

Ultra-Thin Aluminum Frame - Lightweight and durable construction with a knurled edge for easy installation removal, ensuring no vignetting on wide-angle lenses. 24 Layer Coating Structure - Features 48 total layers of protective and anti-reflective coating for long-lasting clarity performance. From large-format cameras to hybrid mirror less systems, it maintains optimal performance without introducing softness or distortion. The glass undergoes strict inspection to ensure perfect surface flatness and minimal reflectivity, achieving consistent optical results across all focal length s.

Double-Sided Multi-Layer Nano Coating - Reduces internal reflections and improves contrast, keeping your images clean crisp even in complex lighting environments. Its precisely machined knurled edge provides a secure grip for quick mounting and removal, even when wearing gloves in the field. From ocean spray to desert dust, your lens remains shielded without affecting clarity or transmission. Lightweight, Ultra-Thin Frame for Perfect Fit: The ultra-thin aluminum frame minimizes weight while eliminating the risk of vignetting on wide-angle lenses.

Whether capturing cinematic footage or detailed stills, this filter guarantees maximum fidelity and true-to-life clarity. Premium Optical Glass for Pure Color Accuracy: Constructed from ultra water-white optical glass, the Air Protector maintains lens's true color rendition and tonal precision. Built to Withstand the Elements: The Air Protectors double-sided waterproof and oil-resistant coatings provide peace of mind in unpredictable conditions. Nano Coating Technology for Real-World Durability: ISIS double-sided multi-layer nano coating enhances image contrast while repelling dust, oil, and moisture.

Waterproof and Oil-Resistant Coating - Repels moisture, fingerprints, smudges with ease, making cleaning effortless preserving flawless optical clarity. NiSi Air Protector Pure light, perfect protection: Engineered for those who demand flawless Optics and reliable defence their lenses. Uncompromising Quality Control: Every NiSi Air Protector undergoes detailed optical testing to ensure exceptional transmission and flatness. The surface treatment ensures that smudges wipe away effortlessly, keeping your lens ready to shoot in any condition, whether humid climates, dusty locations, or studio environments.

Theres no shift in color, exposure, or contrast. Just pure, natural light reaching your sensor. Premium Ultra Water-White Optical Glass - Crafted from precision optical glass that delivers neutral color balance and outstanding light transmission. NiSi 46mm Pro Nano Air Protection Filter with 99.8% Peak Transmission and Supports 8K Image Quality - Optics USA: Light Transmittance Delivers near-perfect transparency, maintaining the full optical performance of your lens while offering dependable protection.

8K Image Quality Support - Engineered for high-resolution sensors, ensuring exceptional detail, contrast, and edge-to-edge sharpness. Service: The official exclusive distributor for NiSi Filters in the USA.

part #: n145984 price

• $42.99

specifications filtecam:

• brand: Nisi Optics Usa
• mpn: N-145984
• part type: Air Filter
• size: 46mm

general filtecam:

• Cameras Photo > Lenses Filters > Filters
• condition: New

payments filtecam:

• wallet: Paypal
• credit card: Diners-club
• other

returns filtecam:

• paid by: Buyer
• method: Money back
• policy: Returns Accepted
• time: 14 Days

seller filtecam:

• rating: 99.3%
• city: Los Angeles, California
• # reviews: 507

shipping filtecam:

• service: USPS Ground Advantage, FedEx 2Day
• class: Standard, Expedited
• carrier: USPS, FedEx
• cost: $0.00
• transit: 5-10 Days
• type: Fixed

offer filtecam:

• sold: 0
• quantity: 9
• options: Ship-to-home
• availability: In Stock
• best offers: True
• started: February 14, 2026

Nisi Optics Usa N-145984 Is Similar To:

• 100150sgnd09 Nisi Soft Nano Ir Graduated Nd Filter 190203108228 (33.8% similar) The glass is fine annealing environmental protection optical H-K15L, double sides grinding and polishing to make sure high parallelism smooth ensure sharpness of image. Anti-glaring: double sides anti-reflection coating,can avoid high reflection of metal film such as aluminum or chromium. Nisi ...(September 23rd, 2018)
• 180-hir-gnd8 Nisi Nano Ir Hard Graduated Neutral Density Stop 4897045106745 (20.9% similar) This filter is made from high quality optical glass not raisin with nano coating to prevent losing any single bit of detail. The filter can be re positioned in holder allowing recompose photo for best result. 3 stop is specially designed for landscape photographers. This filter measures 180 x 210MM ...(July 3rd, 2018)
• 180-ir-nd1000 Nisi 180x180mm Nano Ir 4897045106721 (24.5% similar) The Nisi 180X180MM nano ir neutral density filter is specially designed for landscape photographers. 9 density provides a 3 stop reduction in light from entering the lens. Nisi added the infrared protection coating layer to this filter which help eliminate light through lens bring back nature color...(February 21st, 2018)
• 180-ir-nd64 Nisi 180x180mm Nano Ir (24.4% similar) This filter measures 180 x 180MM and is compatible with the Nisi holder for canon 11-24MM. Neutral density filters do not affect the coloration of image and 8 density provides a 6 stop reduction in light from entering the lens. Nisi added the infrared protection coating layer to this filter which ...(February 21st, 2018)
• 180-rir-gnd8 Nisi 180x210mm Reverse Nano 4897045106752 (23.8% similar) This filter is made from high quality optical glass not raisin with nano coating to prevent losing any single bit of detail. This filter measures 180 x 210MM and is compatible with the Nisi 180MM holder for canon 11-24MM. The filter can be re positioned in holder allowing recompose photo for best ...(February 21st, 2018)
• 80254574 Nisi Nano Soft Graduated Neutral Density Filter (28.8% similar) This filter measures neutral density filters do not affect the coloration of image and. Nisi reverse nd filter is designed with dark area on the of and gradually clearer to top while bottom part clear preventing over exposure skyline. Shipping and handling includes all costs that occur when an item ...(November 30th, 2018)
• N100v5pnc Nisi V5 Pro With 4897045109401 (24.8% similar) The filter holder can be attached to a 67, 72, or 77MM lens by attaching appropriate ring 82MM main adapter ring, making this one of most versatile holders available. Nisi 100MM v5 pro with new landscape cpl filter holder system kit and 67MM, 72MM, 77MM, 82MM adapter rings leather storage case the ...(May 3rd, 2017)
• N180rgnd9 Nisi 180x210 Nano Ir (22% similar) Nisi filters glass 180X210MM nano ir graduated nd. This technology was developed for the Nisi ir nd exclusively by filters. The optical nano coating provides for a perfectly neutral filter that has no color shift or cast. Nisi filters are precision cut, polished and optically processed to allow for ...(June 27th, 2017)
• Nanoirnd0.64x5.65 Ikan Nisi Nano Infrared Neutral Density Filter (22.4% similar) Printers are not returnable once the toner cartridges have been installed or released. Memory cards and any other blister pack items are not returnable once opened. The other technique lamination between two panes of glass causes color shift, higher reflection and less control your image, unlike ...(August 3rd, 2018)
• Nic-44-nd0.6 Ikan Nisi 4x4 Nano (18.8% similar) In the unlikely event a TV is defective warranty to be handled thru manufacturer. 22LBS stop filter - protective case Ian Nisi 1 year warranty infrared control and soft graduated neutral density made out of high-quality optical glass. Scratch resistant protective coating reduces sensitivity to ...(August 28th, 2017)
• Nic-66-nd0.3 Ikan Nisi 6.6x6.6 Nano (16.7% similar) Items must be in the original, undamaged manufacturers packaging with all materials, including instruction booklet's, packing inserts, and blank warranty cards. Scratch resistant protective coating reduces sensitivity to scratches. Protective filter case a stylish leatherette protects each ...(May 4th, 2017)