Optolong UHC 2" Light Pollution Filter

Optolong UHC 2" Filter

Introducing the Optolong UHC 2" Inch Filter

The Optolong UHC 2" Light Pollution Filter is an indispensable accessory for any serious astronomer or astrophotographer. This Ultra High Contrast (UHC) broadband filter is specifically designed to improve the visibility of various deep-sky objects by selectively reducing the transmission of light pollutants. By doing so, it significantly enhances the contrast and detail of nebulae, galaxies, and star clusters. This filter is particularly effective in urban and suburban areas where light pollution is a significant issue, making it an essential tool for both visual observation and astrophotography.

Features of the Optolong UHC Filter

The Optolong UHC 2" Light Pollution Filter is equipped with a range of advanced features that make it a standout choice for enhancing your astronomical observations:

• High Transmission Rates: The filter boasts 95% transmission at the main nebula emission lines, including H-beta (486.1nm), OIII (495.9nm and 500.7nm), H-alpha (656.3nm), and SII (672nm).
• Effective Light Pollution Blocking: It offers 0.1% transmission of the major emission lines of artificial light pollution, such as mercury (Hg) at 435.8nm, 546.1nm, 577nm, and 578.1nm, and sodium (Na) at 589nm, 589.6nm, 615.4nm, and 616.1nm.
• Precision Polishing: Both surfaces of the filter are fine optically polished to 1/4 wavelength or better, ensuring superior image quality with parallelism within 30 seconds of arc.
• High-Quality Materials: Made from 2mm thick Schott B270 optical glass substrate, the filter offers excellent durability and reliability.
• Advanced Coating Technology: Features multi-layer anti-reflection coatings, non-cementing optical substrate coatings, and electron-beam gun evaporation with ion-assisted deposition for durability and scratch resistance.
• Durable Filter Cell: The filter cell is CNC machined from black anodized aerometal, providing a lightweight yet strong structure with a clear aperture of 45mm.
• Laser Engraving: The filter cell features laser engraving to prevent fading, ensuring that important information remains legible over time.
• Ultra-Thin Design: The ultra-thin filter cell minimizes vignetting and maximizes the possible clear aperture.

Applications of the Optolong UHC 2" Filter

This filter is ideal for a variety of astronomical applications, particularly in environments with heavy light pollution:

• Deep-Sky Observation: Perfect for observing nebulae, galaxies, and star clusters by enhancing contrast and detail.
• Astrophotography: Essential for capturing detailed images of deep-sky objects with reduced light pollution interference.
• Urban Astronomy: Suitable for use in suburban and urban areas where light pollution is a significant issue.

Benefits of Using the Optolong UHC 2" Light Pollution Filter

Incorporating the Optolong UHC 2" Light Pollution Filter into your astronomical setup offers numerous benefits:

• Superior Image Quality: Achieve high-contrast, detailed images of deep-sky objects by selectively reducing light pollution.
• Versatile Use: Suitable for both visual observation and astrophotography, making it a valuable tool for all types of astronomical activities.
• Durable and Reliable: Constructed from high-quality materials and advanced manufacturing processes, the filter is built to last.
• User-Friendly: Easy to attach and use with standard 2-inch eyepieces and cameras.

What is the Optolong UHC 2" Light Pollution Filter Used For?

The Optolong UHC 2" Light Pollution Filter is designed to improve the visibility of deep-sky objects by selectively reducing the transmission of light pollutants. This filter enhances the contrast and detail of nebulae, galaxies, and star clusters, making them more visible even in areas with significant light pollution. It is particularly effective for astrophotography, allowing you to capture clearer, more detailed images of the night sky.

Usage Instructions for the Optolong UHC 2" Light Pollution Filter

Using the Optolong UHC 2" Light Pollution Filter 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 M48x0.75mm 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 enhanced clarity and 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 UHC 2" Light Pollution Filter

To maximize the performance of your Optolong UHC 2" Light Pollution Filter:

• Use in Optimal Conditions: For best results, use the filter under clear and dark skies.
• Combine with Other Filters: Consider using other narrowband filters for specific emission lines to capture different wavelengths of light from celestial objects.
• Regular Maintenance: Clean your filters and telescope lenses regularly to ensure the highest image quality.

Q&A: Common Questions About the Optolong UHC 2" Light Pollution Filter

Q: Can I use the Optolong UHC 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 reduce light pollution effectively? A: Yes, the filter is designed to selectively reduce the transmission of light pollutants, 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 purposes, offering versatility and high performance for all astronomical activities.

Q: Can I use this filter for sun observation? A: No, the Optolong UHC filter is not designed for sun observation. Looking at the sun with this filter can cause blindness.

Why Should You Buy the Optolong UHC 2" Filter?

The Optolong UHC 2" Light Pollution Filter is an essential tool for anyone serious about astronomy and astrophotography. Its ability to selectively reduce light pollution and improve the visibility of deep-sky objects makes it invaluable for capturing detailed images of nebulae, galaxies, and star clusters. With its high-quality construction and advanced features, this filter will significantly improve your stargazing and imaging experience.

Specifications of the Optolong UHC 2 Inch Filter

• Filter Size: 2 inches
• Transmission: 95% at main nebula emission lines (H-beta 486.1nm, OIII 495.9nm & 500.7nm, H-alpha 656.3nm, and SII 672nm)
• Blocking: 0.1% transmission of major emission lines of artificial light pollution (Hg 435.8nm, 546.1nm, 577nm, and 578.1nm; Na 589nm, 589.6nm, 615.4nm, and 616.1nm)
• Optical Quality: Multi-layer anti-reflection coating, non-cementing optical substrate coating
• Material: Optical glass lens, aluminum frame
• Surface Quality: High-quality aerometal material with CNC machining, sand blasting, and black anodized finish
• Thread: Standard M48x0.75mm
• Net Weight: 5.2g / 0.18oz

Package Content

When you purchase the Optolong UHC 2" Light Pollution Filter, you will receive:

• 1 x Optolong UHC 2" Light Pollution Filter: 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 UHC 2" Light Pollution Filter. 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.