Optolong ND Filter 2" (ND3)

Optolong ND3 Filter 2"

Introducing the Optolong ND Filter 2" (ND3)

The Optolong ND Filter 2" (ND3) is an essential accessory for astronomers and astrophotographers who need to manage brightness without altering the color balance of their observations. This neutral density filter is designed to uniformly reduce the intensity of all wavelengths of light, preserving the true color of celestial objects. Whether you're observing the Moon, Venus, or splitting double stars, the Optolong ND Filter ensures you get the clearest and most detailed view possible. Crafted from high-quality materials and featuring advanced coating technology, this filter is built to provide exceptional performance and durability.

Features of the Optolong ND3 Filter

The Optolong ND Filter 2" (ND3) boasts a range of features that make it an indispensable tool for serious astronomers and astrophotographers:

• High Reduction Factor: The filter has an ND-3.0 rating, providing a 1,000 reduction factor and a transmission of 0.1%. This significantly reduces the brightness of objects without changing their color.
• Superior Material Quality: Made with Schott B260 substrate material from Germany, the filter is 2.0mm thick, ensuring durability and reliability.
• Advanced Coating Technology: Features multiple layers of anti-reflection non-cementing coatings applied via electron-beam gun evaporation with ion-assisted deposition, enhancing durability and scratch resistance.
• Precision Polishing: The filter substrate is fine-optically polished to 1/4 wave with less than 30 parallelism over both surfaces, ensuring superior image quality.
• Durable Filter Cell: The CNC machined, black anodized aero-metal filter cell is lightweight yet strong, providing a clear aperture of 44mm.
• Laser Engraving: Ensures that all markings remain legible over time and do not fade.
• Ultra-Thin Design: The ultra-thin filter cell minimizes vignetting and maximizes the possible clear aperture.

Applications of the Optolong ND Filter 2"

This filter is ideal for a variety of astronomical applications, particularly where managing brightness is crucial:

• Lunar Observation: Perfect for observing the Moon with reduced brightness, making surface details more visible and reducing glare.
• Planetary Observation: Ideal for viewing Venus, especially during its bright phases, without overwhelming brightness.
• Double Star Splitting: Helps in splitting double stars by reducing glare and improving contrast.
• Solar Observation: Can be used with a solar wedge to safely observe the Sun when combined with appropriate solar filters.

Benefits of Using the Optolong ND Filter 2"

Incorporating the Optolong ND Filter 2" (ND3) into your astronomical setup offers numerous benefits:

• Improved Image Clarity: Reduces brightness without altering color, providing sharper and more detailed views.
• Enhanced Contrast: Increases the contrast of celestial objects, making them stand out against the background sky.
• Durable and Reliable: Constructed from high-quality materials and advanced manufacturing processes, the filter is built to last.
• Versatile Use: Suitable for a wide range of astronomical observations, including lunar, planetary, and solar viewing.
• User-Friendly: Easy to attach and use with standard 2-inch eyepieces and cameras.

What is the Optolong ND Filter 2" Used For?

The Optolong ND Filter 2" (ND3) is designed to uniformly reduce the brightness of celestial objects without changing their color balance. This makes it ideal for a variety of astronomical observations, including:

• Lunar Observation: Reducing the brightness of the Moon to make surface details more visible.
• Planetary Observation: Viewing bright planets like Venus without overwhelming brightness.
• Double Star Splitting: Improving contrast and reducing glare to better observe double stars.
• Solar Observation: Safe viewing of the Sun when used with a solar wedge and appropriate solar filters.

Usage Instructions for the Optolong ND Filter 2"

Using the Optolong ND Filter 2" (ND3) is straightforward and efficient. Here’s how to get started:

1. Attach the Filter: Secure the filter to the 2-inch eyepiece or camera adapter of your telescope using the standard thread.
2. Adjust Focus: Adjust your telescope’s focus to get a clear view of your target object.
3. Observe or Photograph: Begin your observation or astrophotography session, taking advantage of the reduced brightness and improved contrast provided by the filter.
4. Store Safely: After use, store the filter in its protective case to prevent damage and contamination.

Tips for Getting the Best Results with the Optolong ND3 Filter 2"

To maximize the performance of your Optolong ND Filter 2" (ND3):

• Use in Clear Skies: For optimal results, use the filter under clear and dark skies.
• Combine with Other Filters: Consider using other filters for specific purposes, such as solar filters for safe Sun observation.
• Regular Maintenance: Clean your filters and telescope lenses regularly to ensure the highest image quality.
• Proper Storage: Always store the filter in its protective case to prevent scratches and other damage.

FAQ: Common Questions About the Optolong ND Filter

Q: Can I use the Optolong ND Filter with any telescope? A: Yes, the filter is compatible with any telescope that accommodates 2-inch eyepieces or camera adapters.

Q: Does the filter affect the color of celestial objects? A: No, the filter is designed to uniformly reduce brightness without changing the color balance, preserving the true color of objects.

Q: Is the filter suitable for both visual observation and astrophotography? A: Absolutely, the filter is designed for both purposes, offering versatility and high performance for all astronomical activities.

Q: Can I use this filter for sun observation? A: Yes, but it must be used with a solar wedge and appropriate solar filters to ensure safe viewing of the Sun.

Q: How should I clean and store the filter? A: Clean the filter gently with a soft, lint-free cloth and store it in its protective case when not in use to prevent damage.

Why Should You Buy the Optolong ND3 Filter?

The Optolong ND Filter 2" (ND3) is an essential tool for anyone serious about astronomy and astrophotography. Its ability to reduce brightness without altering color balance makes it invaluable for capturing detailed images of the Moon, planets, and double stars. Whether you're observing the bright surface of the Moon or the dazzling brightness of Venus, this filter ensures you get the clearest and most accurate view possible. With its high-quality construction and advanced features, the Optolong ND Filter 2" (ND3) will significantly improve your stargazing and imaging experience.

Specifications of the Optolong ND Filter 2" Inch

• Filter Size: 2 inches
• Reduction Factor: 1,000
• Transmission: 0.1%
• Material: Schott B260 substrate material, 2.0mm thick
• Optical Quality: Fine optically polished to 1/4 wavelength or better, parallelism within 30 seconds of arc
• Coating Technology: Multi-layer anti-reflection, non-cementing optical substrate, electron-beam gun evaporation with ion-assisted deposition
• Surface Quality: 60/40 according to MIL-O-13830
• Thread: Standard M48x0.75mm
• Clear Aperture: 44mm
• Net Weight: 5.2g / 0.18oz

Package Content

When you purchase the Optolong ND Filter 2" (ND3), you will receive:

• 1 x Optolong ND Filter 2" (ND3): The main component, designed to improve your astronomical observations.
• 1 x Protective Plastic Storage Case: Made from durable PP material to protect your filter when not in use.

Order Now

Transform your astronomical observations and astrophotography with the Optolong ND Filter 2" (ND3). Order now to enjoy clear, high-contrast images of the night sky and capture the beauty of celestial objects with unprecedented detail. Click the link below to add this essential tool to your collection today.

The Optolong ND Filter 2" (ND3) is a powerful tool for any astronomer or astrophotographer looking to reduce the brightness of celestial objects without changing their color balance. With high transmission rates, advanced coating technology, and durable construction, this filter ensures that you can capture stunning, high-contrast images of the night sky with ease. Whether you’re observing from a suburban backyard or a light-polluted urban environment, the Optolong ND filter will help you see the universe in greater detail than ever before. Don't miss out on the opportunity to improve your stargazing and astrophotography experience. Order your Optolong ND Filter 2" (ND3) today and start capturing the cosmos with unmatched clarity and precision.