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  3. NEWPORT FSQ-RG610

NEWPORT FSQ-RG610 Glass Filter Optical Light 610NM New

Fsq-rg610 Newport Co Color Glass Filter Rg610 610nm Optical Light Red 2 Inch New

( Brand: Newport ), ( Manufacturer Part Number: FSQ-RG610 ), ( Part Type: Glass Filter Light ), ( Filter Color: Red )

Review NEWPORT Co Color Glass Filter Rg610 610nm Optical Light Red Inch New

The **Newport FSQ-RG610 Glass Filter (RG610, 610 nm)** is a precision-engineered optical component designed for demanding applications in spectroscopy, microscopy, fluorescence imaging, and laser-based research. Crafted from high-quality Schott RG610 glass, this filter excels in its ability to block wavelengths below approximately 610 nanometers while allowing light in the visible and near-infrared spectrum to pass through with minimal absorption or scattering. The RG610 filter operates on the principle of selective absorption, leveraging the inherent optical properties of the glass to create a sharp cutoff at the specified wavelength, making it ideal for isolating specific spectral regions in experiments where precise light control is essential. Its broad transmission range extends well into the red and near-infrared spectrum, typically exceeding 610 nm with high transmittance efficiency, often surpassing 85% for wavelengths above 650 nm, depending on the thickness and coating specifications. The filter s robust construction ensures durability under rigorous laboratory conditions, with an uncoated surface that maintains optical clarity without the risk of interference patterns or ghost images that can plague thin-film coated alternatives. Whether used in conjunction with fluorescence microscopy to eliminate autofluorescence from shorter wavelengths or in laser-based experiments to refine spectral purity, the Newport FSQ-RG610 delivers consistent performance with minimal thermal or chromatic dispersion, making it a reliable choice for both research and industrial applications. Its compact, square format (typically 25.4 mm x 25.4 mm) and precise optical quality achieved through meticulous polishing and edge grinding ensure seamless integration into optical setups, from benchtop spectrometers to high-power laser systems. For applications requiring even greater precision, the filter s uncoated design allows for easy customization, such as the addition of anti-reflective coatings or alternative mounting configurations, further enhancing its versatility across a wide range of scientific and technical disciplines.

**Pros and Cons of buying a Newport FSQ-RG610 Glass Filter (610 nm Optical Light)**

The Newport FSQ-RG610 is a high-quality optical glass filter designed to block wavelengths below approximately 610 nm while allowing longer wavelengths to pass through. Below is a detailed analysis of its advantages and limitations.

### **Pros**

1. **High Optical Quality and Precision**

The Newport FSQ-RG610 is manufactured using precision glass optics, ensuring minimal distortion and consistent performance across the visible spectrum. It is designed for scientific and industrial applications where accuracy is critical.

2. **Broadband Transmission in the Desired Range**

The filter effectively transmits light above 610 nm with minimal attenuation, making it suitable for applications requiring isolation of longer wavelengths (e.g., fluorescence imaging, spectroscopy, or LED/laser filtering).

3. **Durable and Stable Construction**

Newport is a reputable manufacturer known for producing robust optical components. The FSQ-RG610 is likely built to withstand environmental factors such as temperature fluctuations and mechanical stress, ensuring long-term reliability.

4. **Compatibility with Standard Optical Systems**

The filter is designed to fit standard optical mounts and setups, making it easy to integrate into existing experimental or imaging systems without requiring extensive modifications.

5. **Low Autofluorescence**

Since it is a glass filter rather than a plastic or polymer-based one, it minimizes autofluorescence, which is beneficial in fluorescence microscopy and other sensitive optical measurements.

6. **Cost-Effective for High-Quality Applications**

While not the cheapest filter on the market, it offers a balance between performance and price, making it a practical choice for researchers and engineers who need reliable optical filtering without excessive expense.

7. **Customization Options**

Newport offers various sizes and configurations, allowing users to select the appropriate dimensions for their specific setup.

### **Cons**

1. **Limited Wavelength Range**

The filter is optimized for wavelengths above 610 nm, meaning it will not be useful for applications requiring shorter wavelengths (e.g., blue or green light isolation). Users must ensure their application aligns with this spectral range.

2. **Potential for Chromatic Aberration**

Like many broad-bandpass filters, the FSQ-RG610 may introduce slight chromatic aberration, which could affect imaging quality in applications requiring high-resolution color separation.

3. **Cost Relative to Simpler Filters**

For applications where a more basic or cheaper filter would suffice (e.g., simple LED filtering), the Newport FSQ-RG610 may represent overkill and an unnecessary investment.

4. **Requires Proper Handling**

Optical glass filters are delicate and can scratch or chip if mishandled. Users must take care during installation and cleaning to avoid damaging the filter surface.

5. **Limited Availability of Replacement Parts**

If the filter is damaged or fails, sourcing replacements may be challenging, especially if the specific model is discontinued or no longer in production.

6. **Not Ideal for Narrowband Applications**

If precise narrowband filtering (e.g., 5 nm) is required, the FSQ-RG610 may not provide the necessary selectivity. In such cases, a bandpass filter or interference filter would be more appropriate.

7. **Potential for Polarization Effects**

Depending on the angle of incidence and the filter s orientation, some polarization effects could occur, which may need to be accounted for in sensitive optical experiments.

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### **Ending Conclusion**

The Newport FSQ-RG610 glass filter is a well-engineered, high-performance optical component ideal for applications requiring reliable long-wavelength transmission above 610 nm. Its precision, durability, and compatibility with standard optical systems make it a strong choice for scientific research, microscopy, and industrial applications where optical quality is paramount. However, its limitations such as a fixed wavelength range, potential chromatic aberration, and higher cost relative to simpler filters mean it may not be the best fit for every use case. Users should carefully assess their specific needs before purchasing.

### **Recommendation**

**Buy the Newport FSQ-RG610 if:**

- You require a high-quality, durable filter for wavelengths above 610 nm.

- Your application involves fluorescence imaging, spectroscopy, or LED/laser filtering where optical precision is critical.

- You need a filter that integrates seamlessly with standard optical setups without requiring custom modifications.

- You prioritize long-term reliability and minimal autofluorescence.

**Avoid the Newport FSQ-RG610 if:**

- Your application requires filtering of shorter wavelengths (e.g., blue or green light).

- You need ultra-narrowband filtering (consider a bandpass or interference filter instead).

- Budget constraints make a simpler or cheaper filter more practical.

- You are working with delicate or high-precision imaging where chromatic aberration could be problematic.

For most professional optical applications within its specified range, the Newport FSQ-RG610 is a sound investment. However, always verify compatibility with your specific setup and consult alternative options if your requirements differ significantly from the filter s design parameters.

Details:

Newport Co Color Glass Filter RG610 610nm FSQ-RG610 Optical Light Red 2 New. Glass filter was not touched. Side tape on plastic case was removed to show filter in photos. Item was cut open for listing photos.

Item was in a sealed plastic bag.

part #: fsqrg610 price

  • $29.99

specifications filtecam:

  • brand: Newport
  • mpn: Fsq-rg610
  • part type: Glass Filter Light
  • filter color: Red

offer filtecam:

  • sold: 0
  • options: Ship-to-home
  • quantity: 1
  • started: April 7, 2026
  • best offers: True
  • availability: In Stock

general filtecam:

  • condition: Open box
  • Cameras Photo > Lenses Filters > Filters

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  • type: Fixed
  • transit: 3-7 Days
  • service: USPS Ground Advantage
  • class: Standard
  • cost: $6.50
  • carrier: USPS

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  • city: Yorba Linda, California
  • rating: 100.0%
  • # reviews: 3214

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  • method: Money back
part type: glass filter light, filter color: red,
category: camera & photo > cameras photo > lenses filters > filters, sku: 15811421139768603,
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1 offer $29.99 USD
  • Open box. Offer #1 priced at $29.99 + $6.50 shipping estimate = $36.49* total. Glass filter was not touched. Newport Co Color Glass Filter RG610 610nm Optical Light Red 2 New.+$6.50 shipping

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