THORLABS ND20A Reflective Filter Mount Density SM1-THREADED 2.0

( Brand: Thorlabs ), ( Part Type: Filter Mount ), ( Manufacturer Part Number: ND20A )

Review THORLABS Reflective Nd Filter Sm1-threaded Mount Density 2.0

The Thorlabs ND20A Reflective 25 ND Filter, with a thread size of SM1 and a density of 2.0, is a high-quality optical filter designed for use in various applications where neutral density filtration and reflection control are essential. This filter boasts an impressive neutral density value of 2.0, which reduces the amount of light passing through it by a factor of 100.

The reflective property of this filter is a notable feature, making it ideal for use in applications where both transmission and reflection control are required. This filter is effective in reducing the intensity of reflected light, which is particularly beneficial in applications involving laser beams or other strong light sources.

Manufactured to the highest standards, this ND filter is made from Schott B260 glass, which is known for its excellent optical quality and low birefringence. The filter is also multi-coated with Thorlabs' proprietary broadband anti-reflection coating, ensuring maximum transmission while minimizing reflections.

This filter is threaded with an SM1 (1.035-42) mount, making it compatible with a wide range of optical components and systems. Its compact and lightweight design makes it easy to integrate into various setups, while its robust construction ensures durability and reliability under heavy usage.

The Thorlabs ND20A Reflective 25 ND Filter is an essential tool for researchers, scientists, and engineers working in fields such as spectroscopy, laser technology, and photonics. Its versatility, combined with its high-quality optical properties, makes it an indispensable component for anyone seeking to control and manipulate light effectively.

The Thorlabs ND20A reflective 2.5 ND filter with a SM1 threaded mount and a density of 2.0 is a neutral density filter designed to reduce the amount of light passing through it. Here are some pros and cons of buying this filter:

1. High-quality filter: Thorlabs is known for producing high-quality optical components, and this filter is no exception. It is made of Schott B260 glass, which is known for its excellent optical properties.

2. Reflective coating: The reflective coating on this filter reduces the amount of light reflected off the filter surface, which is important for applications where stray light can be a problem.

3. SM1 threaded mount: The SM1 threaded mount makes it easy to attach the filter to a variety of optical systems, such as telescopes, microscopes, and other imaging systems.

4. Density of 2.0: This filter provides a density of 2.0, which is suitable for reducing the intensity of light by a factor of 4.

1. Limited range of densities: This filter provides a relatively low density, which may not be sufficient for all applications. If you need a higher density filter, you may need to purchase multiple filters or consider a different option.

2. Cost: This filter is not the most expensive option on the market, but it is also not the cheapest. You may want to consider the cost-effectiveness of this filter for your specific application.

3. Size: This filter has a diameter of 25 mm, which may not be suitable for all applications. If you need a different size filter, you may need to purchase a different option.

The Thorlabs ND20A reflective 2.5 ND filter with a SM1 threaded mount and a density of 2.0 is a high-quality optical component suitable for reducing the intensity of light in various applications. Its reflective coating, SM1 threaded mount, and Schott B260 glass make it a reliable and effective option for reducing stray light and maintaining image quality. However, its limited range of densities, size, and cost may make it less suitable for some applications.

If you are looking for a high-quality reflective neutral density filter with a density of 2.0 and a SM1 threaded mount, the Thorlabs ND20A is an excellent option to consider. However, if you need a higher density filter or a different size filter, you may want to explore other options to find the best fit for your specific application.

Details:

Brand new open box never used. Rest assure, customer will get exactly what is seen in the pictures.

part #: nd20a prices

• $41.16-$42.85

specifications quakedental:

• brand: Thorlabs
• part type: Filter Mount
• manufacturer part number: ND20A

general quakedental:

• condition: New Open box
• Business Industrial > Healthcare, Lab Dental > Other Healthcare, Lab Dental

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• method: Money back
• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

shipping quakedental:

• cost: $0.00
• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• type: Calculated
• transit: 3-8 Days

offer quakedental:

• availability: In Stock
• options: Ship-to-home
• best offers: True
• started: November 17, 2025
• sold: 0
• quantity: 1

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seller quakedental:

• # reviews: 5027
• city: Oroville, California
• rating: 99.9%

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