THORLABS NE502B Unmounted Absorptive Filter Od 1/2 0.2

( Brand: Thorlabs ), ( Part Type: Filter ), ( Manufacturer Part Number: NE502B )

Review THORLABS New Unmounted 1/2 Inch Absorptive Nd Filter Od 0.2

The Thorlabs NE502B is an unmounted, 1/2 wave length ( /2), absorptive neutral density (ND) filter with an optical density (OD) of 0.2. This filter is designed to reduce the intensity of light passing through it, making it an essential accessory for various applications where controlling light levels is crucial.

The NE502B filter is manufactured using high-quality materials and advanced techniques to ensure excellent optical performance. It is constructed with Schott B260 glass, which is known for its excellent transparency in the visible and near-infrared spectral regions. This makes the filter ideal for use in applications where the wavelength of the light being filtered falls within this range.

The absorptive property of the NE502B filter means that it absorbs a significant portion of the incident light, rather than reflecting or transmitting it. This feature makes it an excellent choice for applications where minimal light reflection or transmission is desired. Additionally, the filter's /2 wave length design ensures that it provides an even and consistent reduction of light intensity across the visible spectrum.

The NE502B filter has an optical density (OD) of 0.2, which corresponds to a transmission loss of approximately 50% at normal incident light. This density is suitable for various applications where a moderate reduction in light intensity is required. The filter is available in various sizes to cater to different application requirements.

The unmounted design of the NE502B filter allows it to be easily integrated into different optical setups. It can be mounted using standard 1/2 inch filters holders or mounts, making it a versatile and convenient option for many applications. The filter is also scratch-resistant and rugged, making it suitable for use in demanding environments.

In summary, the Thorlabs NE502B is a high-quality, unmounted, /2 wave length, absorptive ND filter with an OD of 0.2, designed for use in applications where controlling light intensity is essential. Its construction using Schott B260 glass ensures excellent optical performance, while its absorptive property provides minimal reflection and transmission. The unmounted design makes it a versatile and convenient option for various applications, making it a valuable addition to any optical setup.

Pros and Cons of Buying Thorlabs NE502B Unmounted 1/2 Absorptive ND Filter OD 0.2

a. High-quality filter: Thorlabs is a well-known and trusted brand in the optics industry, and their NE502B filter is known for its excellent optical quality and durability.

b. Versatile: This absorptive ND filter offers an optical density (OD) of 0.2, making it suitable for a wide range of applications where light reduction is necessary, such as in microscopy, spectroscopy, or imaging systems.

c. Large size: With a diameter of 1/2 inch, this filter is suitable for many standard optical setups, reducing the need for custom-sized filters.

d. Unmounted design: The unmounted design allows for easy integration into various optical systems, and offers greater flexibility in terms of mounting options.

a. Price: Compared to other filter options, the NE502B may be more expensive due to its high-quality materials and brand reputation.

b. Manual handling: As an unmounted filter, it requires manual handling and alignment, which can be time-consuming and may introduce errors if not done carefully.

c. Potential for damage: Because the filter is unmounted, it may be more susceptible to damage during handling and installation, which could lead to reduced performance or even failure.

The Thorlabs NE502B unmounted 1/2 absorptive ND filter OD 0.2 offers several advantages, including its high-quality materials, versatility, and large size. However, it also comes with some disadvantages, such as its higher price point, the need for manual handling, and potential for damage. Ultimately, the decision to purchase this filter depends on the specific requirements of your optical setup and your budget. If you value the benefits of a high-quality, durable filter and have the resources to handle it properly, then the NE502B may be a worthwhile investment. However, if you are working with a limited budget or require a more robust mounting solution, there may be other filter options that better suit your needs.

Details:

NEW Thorlabs NE502B Unmounted 1/2 Absorptive ND Filter OD 0.2.

part #: ne502b prices

• $14.95-$30.99

specifications detectoimage:

• brand: Thorlabs
• part type: Filter
• manufacturer part number: NE502B

payments detectoimage:

• other
• credit card: Diners-club
• wallet: Google-pay

returns detectoimage:

• policy: No Returns

seller detectoimage:

• city: Durham, North Carolina
• rating: 100.0%
• # reviews: 1193

offer detectoimage:

• best offers: True
• sold: 0
• started: December 28, 2025
• quantity: 1
• availability: In Stock
• options: Ship-to-home

shipping detectoimage:

• type: Calculated
• transit: 6-10 Days
• service: USPS Ground Advantage
• class: Standard
• cost: $4.95
• carrier: USPS

general detectoimage:

• Test, Measurement Inspection > Cameras Imaging > Other Cameras Imaging
• condition: New

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