Optolong SII Filter 2 Inch 6.5nm

Optolong SII 2" Inch Filter 6.5nm

Introducing the Optolong SII Filter 2 Inch

The Optolong SII Filter 2 Inch 6.5nm is a premier choice for astronomers and astrophotographers looking to capture the intricate details of deep-sky objects. This narrowband filter is specifically designed to isolate the Sulfur II (SII) emission line at 672nm, significantly enhancing the contrast and visibility of nebulae and other celestial phenomena. With its advanced features and high-quality construction, the Optolong SII Filter ensures that you can achieve stunning, high-contrast images with unparalleled clarity.

Features of the Optolong SII Filter 2" Inch 6.5nm

The Optolong SII Filter 2 Inch 6.5nm is packed with features that make it a standout choice for serious astronomers:

• High Transmission Rate: The filter guarantees 80% transmission at the SII line (672nm), ensuring bright and detailed images.
• Effective Light Pollution Blocking: It drastically reduces other transmissions, including those responsible for light pollution, enhancing the visibility of your target objects.
• Infrared Blocking: Blocks infrared wavelengths from 700nm to 1100nm, eliminating the need for a separate IR-Cut filter.
• 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.
• High-Quality Materials: Made from Schott B260 substrate material, the filter is 2.0mm thick, providing durability and reliability.
• Advanced Coating Technology: Multiple layers of anti-reflection coatings are applied via electron-beam gun evaporation with ion-assisted deposition, ensuring durability and scratch resistance.
• Durable Filter Cell: The filter cell is CNC machined from black anodized aero-metal, providing a lightweight yet strong structure with a clear aperture of 26mm.
• Laser Engraving: The filter cell features laser engraving to prevent fading, ensuring that important information remains legible over time.

Applications of the Optolong SII 6.5nm Filter 2 Inch

This filter is ideal for a variety of astronomical applications:

• Deep-Sky Imaging: Perfect for capturing detailed images of nebulae, supernova remnants, and other emission line objects.
• Astrophotography: Enhances the quality and contrast of your astrophotographs, making celestial details more prominent.
• Scientific Research: Suitable for professional astronomers and researchers who require precise and reliable optical performance for their observations and studies.

Benefits of Using the Optolong SII Filter 2 Inch 6.5nm

Incorporating the Optolong SII Filter into your astronomical toolkit offers numerous benefits:

• Superior Image Quality: Achieve high-contrast, detailed images of deep-sky objects by isolating the SII emission line.
• Reduced Light Pollution: The filter effectively cuts through light pollution, making it possible to observe and photograph celestial objects even in urban areas.
• Durable and Reliable: Constructed from high-quality materials and advanced manufacturing processes, the filter is built to last.
• Versatile Use: Suitable for both visual observation and astrophotography, making it a valuable tool for various astronomical activities.

What is the Optolong SII Filter 2 Inch 6.5nm Used For?

The Optolong SII Filter 2 Inch 6.5nm is designed to isolate the Sulfur II (SII) emission line at 672nm, significantly enhancing the contrast and visibility of deep-sky objects. By blocking unwanted wavelengths, including those from light pollution, this filter ensures that you can capture clear and detailed images of nebulae, supernova remnants, and other emission line objects.

Usage Instructions for the Optolong SII 6.5nm Filter 2 Inch

Using the Optolong SII Filter is straightforward and efficient. Here’s how to get started:

1. Attach the Filter: Secure the filter to the 2-inch eyepiece of your telescope, using the standard M48x0.75 male filter thread.
2. Adjust Focus: Adjust your telescope’s focus to get a clear view of your target object.
3. Capture Images: Begin capturing images, taking advantage of the enhanced clarity and contrast provided by the filter.
4. Store Safely: After use, store the filter in its protective plastic case to prevent damage and contamination.

Tips for Getting the Best Results with the Optolong SII Filter 2" Inch

To maximize the performance of your Optolong SII Filter:

• Use in Clear Skies: For optimal results, use the filter under clear and dark skies.
• Combine with Other Filters: Consider using other narrowband filters, such as H-alpha and OIII, for multi-wavelength imaging.
• Maintain Your Equipment: Regularly clean your filters and telescope lenses to ensure the highest image quality.

Q&A: Common Questions About the Optolong SII Filter 2 Inch 6.5nm

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

Q: Does the filter reduce light pollution effectively? A: Yes, the filter is designed to block wavelengths responsible for light pollution, significantly improving image contrast and clarity.

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

Why Should You Buy the Optolong SII Filter 2 Inch 6.5nm?

The Optolong SII Filter 2 Inch 6.5nm is an essential tool for anyone serious about astronomy and astrophotography. Its ability to isolate the SII emission line and reduce light pollution makes it invaluable for capturing detailed images of deep-sky objects. With its high-quality construction and advanced features, this filter will significantly improve your stargazing and imaging experience.

Specifications of the Optolong SII Filter 2 Inch 6.5nm

• Filter Size: 2 inches
• Bandwidth: 6.5nm
• Transmission: 80% at SII line (672nm)
• Blocking: Infrared wavelengths from 700nm to 1100nm, Hg at 435nm and 578nm, Na at 589nm
• Optical Quality: Fine optically polished to 1/4 wave with less than 30 parallelism over both surfaces
• Material: Schott B260 substrate material, 2.0mm thick
• Surface Quality: 60/40 according to MIL-O-13830
• Coating Technology: Multiple layers of anti-reflection coatings applied via electron-beam gun evaporation with ion-assisted deposition
• Thread: M48x0.75 male filter thread
• Design: Ultra-thin filter cell with clear aperture of 26mm
• Construction: CNC machined and black anodized aero-metal filter cell with laser engraving

Package Content

When you purchase the Optolong SII Filter 2 Inch 6.5nm, you will receive:

• 1 x Optolong SII Filter 2 Inch 6.5nm: 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

Elevate your astronomical observations and astrophotography to new heights with the Optolong SII Filter 2 Inch 6.5nm. Order now to enjoy clear, high-contrast images of the night sky and capture the beauty of deep-sky objects with unprecedented detail. Click the link below to add this essential tool to your collection today.