Optolong SHO (SII H-Alpha OIII) Filters 2" / 1.25"

Optolong SHO (SII H-Alpha OIII) 6.5nm Filters 2" / 1.25"

Introducing the Optolong SHO Narrowband Filters

Astrophotography enthusiasts seeking to capture the mesmerizing beauty of deep-sky objects will find the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters an invaluable addition to their toolkit. Available in both 2" and 1.25" sizes, these narrowband filters are specifically designed to isolate the key emission lines of Sulfur II (SII), Hydrogen-Alpha (H-Alpha), and Oxygen III (OIII). By selectively filtering these wavelengths, the Optolong SHO filters drastically reduce the interference from light pollution and enhance the contrast of celestial objects, enabling you to capture stunning, high-contrast images with unparalleled clarity.

Features of the Optolong SHO (SII H-Alpha OIII) Filters

• Ultra-Narrow Bandwidth: Each filter isolates a 6.5nm bandwidth centered at its respective emission line, ensuring high contrast and detailed images.
• High Transmission Rates: SII and OIII filters offer 80% transmission at their designated wavelengths, while the H-Alpha filter provides over 85% transmission.
• Superior Optical Quality: Manufactured with Germany Schott optical glass, each filter undergoes precision double-sided polishing to maintain high image quality.
• Advanced Coating Technology: Multi-layer anti-reflection coatings and non-cementing optical substrate coatings applied via electron-beam gun evaporation with ion-assisted deposition (IAD) ensure durability and resistance to scratches.
• Durable Construction: CNC machined and black anodized aero-metal filter cells provide strength and lightweight characteristics. The filters are also laser-engraved to ensure permanent labeling.
• Standard Threading: Compatible with standard M48x0.75mm threads for 2-inch filters and M28.5x0.6mm threads for 1.25-inch filters.

Applications of the Optolong SHO (SII H-Alpha OIII) Filters

These filters are ideal for a variety of astrophotography applications:

• Deep-Sky Imaging: Perfect for capturing intricate details of nebulae and other celestial objects rich in sulfur, hydrogen, and oxygen emissions.
• Urban Astrophotography: Effectively reduces the impact of light pollution, making it suitable for use in light-polluted urban environments.
• Narrowband Imaging: Essential for creating detailed SHO (Hubble Palette) images, enhancing the visibility of different elements within nebulae.
• Wide-Field Astrophotography: Enhances contrast and detail in wide-field images when used with CCD or CMOS cameras.

Benefits of Using the Optolong SHO (SII H-Alpha OIII) Filters

Using the Optolong SHO filters provides numerous benefits:

• Enhanced Image Quality: Achieve high-contrast, detailed images of nebulae and other deep-sky objects by isolating specific emission lines.
• Effective Light Pollution Reduction: Blocks unwanted light pollution, allowing for clearer and more detailed astrophotography.
• Versatile Compatibility: Suitable for use with DSLR cameras, color/MONO CMOS, and CCD cameras.
• Durable and Long-Lasting: Made from high-quality materials, these filters offer long-lasting performance and resistance to environmental factors.

What are the Optolong SHO (SII H-Alpha OIII) Filters Used For?

The Optolong SHO filters are designed to enhance the visibility and detail of celestial objects by capturing specific wavelengths of light. This makes them ideal for:

• Deep-Sky Imaging: Capturing detailed images of nebulae and other celestial objects.
• Light Pollution Reduction: Minimizing the impact of light pollution for clearer, high-contrast images.
• Astrophotography: Providing high-quality images with DSLR, color/MONO CMOS, and CCD cameras.
• Specific Wavelength Isolation: Optimizing imaging for the SII, H-Alpha, and OIII emission lines.

Usage Instructions for the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters

Using the Optolong SHO filters is straightforward:

1. Attach the Filter: Secure the filter to the appropriate eyepiece or camera adapter of your telescope.
2. Adjust Focus: Adjust your telescope’s focus to achieve a clear view of your target object.
3. Capture Images: Begin your astrophotography session, leveraging the filter’s capabilities to enhance clarity and reduce light pollution.
4. Store Safely: After use, store the filter in its protective case to prevent damage.

Tips for Getting the Best Results with the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters

To maximize the performance of your Optolong SHO filters:

• Use in Clear Skies: For optimal results, use the filters under clear and dark skies.
• Combine with Other Filters: Consider using the filters in combination with other narrowband filters to capture a complete range of wavelengths.
• Regular Maintenance: Clean your filters and telescope lenses regularly to ensure the highest image quality.
• Experiment with Different Objects: Try imaging various celestial objects to fully appreciate the benefits of each filter.

FAQ: Common Questions About the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters

Q: Can I use the Optolong SHO filters with any telescope? A: Yes, the filters are optimized for use with various telescopes that accommodate 2" or 1.25" eyepieces or camera adapters.

Q: Do these filters effectively reduce light pollution? A: Yes, the filters are designed to block unwanted wavelengths of light, significantly reducing the impact of light pollution and enhancing image clarity.

Q: Are the filters suitable for both visual observation and astrophotography? A: The filters are primarily designed for astrophotography, providing high performance with DSLR, color/MONO CMOS, and CCD cameras.

Q: Can I use these filters for sun observation? A: The filters are not intended for direct solar observation. Always use appropriate solar filters and safety precautions when observing the Sun.

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

Why Should You Buy the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters?

The Optolong SHO (SII H-Alpha OIII) 6.5nm Filters are essential tools for astrophotographers and astronomers who want to capture stunning images of the night sky. Their ability to isolate specific wavelengths of light and reduce the impact of light pollution makes them invaluable for achieving detailed and high-contrast images of nebulae and other celestial objects. With their high-quality construction and advanced features, these filters will significantly improve your stargazing and imaging experience.

Popular Targets with the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters

Using the Optolong SHO filters, you can capture stunning images of the following popular deep-sky targets:

• The Orion Nebula (M42): One of the brightest nebulae in the sky, rich in hydrogen emissions.
• The Eagle Nebula (M16): Known for its iconic Pillars of Creation, visible in H-Alpha.
• The Lagoon Nebula (M8): A giant interstellar cloud, perfect for capturing SII, H-Alpha, and OIII emissions.
• The Crescent Nebula (NGC 6888): A bright emission nebula with strong SII and OIII lines.
• The Rosette Nebula (NGC 2237): A large, circular emission nebula ideal for SHO imaging.

Specifications of the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters

Specifications of the Optolong SII Narrowband 6.5nm Filter

• Filter Size: Available in 2 inches and 1.25 inches
• Bandwidth: 6.5nm centered at 672nm
• Center Wavelength: 672nm (SII)
• Transmission: 80% at the 672nm SII line
• Optical Quality: Multi-layer anti-reflection coating, non-cementing optical substrate coating
• Material: Germany Schott optical glass
• Thickness: 2.0mm
• Blocking Range: 300-1000nm, with OD4 blocking
• Surface Quality: 60/40 according to MIL-O-13830
• Surface Parallelism: 1/4λ, <30 parallelism over both surfaces
• Thread: Standard M48x0.75mm for 2-inch filters and M28.5x0.6mm for 1.25-inch filters

Specifications of the Optolong H-Alpha 7nm Filter

• Filter Size: Available in 2 inches and 1.25 inches
• Bandwidth: 7nm centered at 656nm
• Center Wavelength: 656nm (H-Alpha)
• Transmission: Over 85% at the 656nm H-Alpha line
• Optical Quality: Multi-layer anti-reflection coating, non-cementing optical substrate coating
• Material: Germany Schott optical glass
• Thickness: 1.85 ± 0.05mm
• Blocking Range: 300-1100nm, with OD4 blocking
• Surface Quality: 60/40 according to MIL-O-13830
• Surface Parallelism: 1/4λ, <30 parallelism over both surfaces
• Thread: Standard M48x0.75mm for 2-inch filters and M28.5x0.6mm for 1.25-inch filters

Specifications of the Optolong OIII Narrowband 6.5nm Filter

• Filter Size: Available in 2 inches and 1.25 inches
• Bandwidth: 6.5nm centered at 500nm
• Center Wavelength: 500nm (OIII)
• Transmission: 80% at the 500nm OIII line
• Optical Quality: Multi-layer anti-reflection coating, non-cementing optical substrate coating
• Material: Germany Schott optical glass
• Thickness: 2.0mm
• Blocking Range: 300-1000nm, with OD4 blocking
• Surface Quality: 60/40 according to MIL-O-13830
• Surface Parallelism: 1/4λ, <30 parallelism over both surfaces
• Thread: Standard M48x0.75mm for 2-inch filters and M28.5x0.6mm for 1.25-inch filters

Package Content

• OPTOLONG 2"/1.25" inch SII 6.5nm Filter
• OPTOLONG 2"/1.25" inch H-Alpha 7nm Filter
• OPTOLONG 2"/1.25" inch OIII 6.5nm Filter
• Sturdy Plastic Cases for Each Filter

Available Buying Options

The Optolong SHO (SII H-Alpha OIII) 6.5nm filters come in a variety of configurations to suit different astrophotography needs. You can purchase the complete 2-inch SHO 3-filter set or opt for individual filters such as the 1.25-inch and 2-inch SII 6.5nm filters, 1.25-inch and 2-inch H-Alpha 7nm filters, and 1.25-inch and 2-inch OIII 6.5nm filters. These options provide flexibility for users with varying equipment and preferences, ensuring compatibility with different telescope setups and allowing for tailored imaging solutions. Whether you need the entire set for comprehensive narrowband imaging or specific filters to enhance particular emission lines, Optolong offers high-quality filters to meet your requirements.

Order Now

Don't miss out on the opportunity to elevate your astrophotography with the Optolong SHO (SII H-Alpha OIII) 6.5nm Filters. Order now and start capturing the stunning beauty of deep-sky objects with unparalleled clarity and contrast. Invest in your passion for astronomy and take your imaging capabilities to the next level with these high-quality, durable filters.