Optolong CLS Filter 1.25"

Optolong CLS Filter 1.25" Inch

Introducing the Optolong CLS Filter 1.25"

The Optolong CLS Filter 1.25" is a game-changing tool for astronomers and astrophotographers striving to capture clear and detailed images of the night sky, even in light-polluted urban environments. This City Light Suppression (CLS) broadband filter is specifically designed to improve the visibility of deep-sky objects by selectively reducing the transmission of wavelengths from artificial light sources, such as mercury vapor lamps and sodium vapor lights, as well as natural skyglow. With advanced coatings and high-quality materials, the Optolong CLS Filter enhances contrast and detail, making it an essential accessory for both visual observation and astrophotography.

Features of the Optolong 1.25" CLS Filter

The Optolong CLS Filter 1.25" is packed with features that make it a standout choice for reducing light pollution and enhancing the visibility of celestial objects:

• High Transmission Rate: The filter provides 95% transmission of main nebula emission lines, including H-alpha (656nm), OIII (496nm and 500nm), SII (672nm), and H-beta (486nm), ensuring bright and clear images.
• Effective Light Pollution Blocking: Blocks 0.1% of off-band wavelengths, specifically targeting major emission lines of artificial light pollution such as Na (589nm) and Hg (435nm and 578nm).
• Superior Material Quality: Made with high-quality optical glass and an aluminum frame, ensuring durability and reliability.
• Advanced Coating Technology: Features multi-layer anti-reflection coatings and non-cementing optical substrate coatings, applied via electron-beam gun evaporation with ion-assisted deposition for enhanced durability and scratch resistance.
• Precision Engineering: The filter cell is CNC machined from aero-metal, sand-blasted, black anodized, and laser engraved for a high-quality finish that resists fading.
• Ultra-Thin Design: The ultra-thin filter cell minimizes vignetting and maximizes the clear optical aperture.
• Versatile Compatibility: Suitable for use with color CCD cameras and unmodified DSLRs, making it a versatile tool for various imaging setups.

Applications of the Optolong CLS 1.25" Filter

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

• Deep-Sky Imaging: Perfect for capturing detailed images of nebulae, galaxies, and star clusters with enhanced contrast and clarity.
• Planetary Imaging: Improves the visibility of planetary details by reducing the impact of light pollution.
• Visual Observation: Enhances the contrast of faint celestial objects, making them more visible against the night sky.

Benefits of Using the Optolong CLS Filter

Incorporating the Optolong CLS Filter 1.25" into your astronomical setup offers numerous benefits:

• Superior Image Quality: Achieve high-contrast, detailed images of deep-sky objects by blocking unwanted light pollution.
• Enhanced Contrast: The filter increases the contrast between celestial objects and the night sky, making faint objects more visible.
• 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, providing excellent performance in various applications.

What is the Optolong CLS Filter 1.25" Used For?

The Optolong CLS Filter 1.25" is designed to improve the visibility and detail of celestial objects by blocking unwanted wavelengths of light from artificial and natural sources. This makes it ideal for:

• Deep-Sky Imaging: Reducing light pollution to capture clearer and more detailed images of nebulae, galaxies, and star clusters.
• Planetary Imaging: Enhancing the visibility of planetary details by reducing the effects of light pollution.
• Visual Observation: Increasing the contrast of faint celestial objects against the night sky, making them easier to observe.

Usage Instructions for the 1.25" Optolong CLS Filter

Using the Optolong CLS Filter 1.25" is straightforward and efficient. Here’s how to get started:

1. Attach the Filter: Secure the filter to the 1.25-inch eyepiece or camera adapter of your telescope using the standard M26.5x0.6mm 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 CLS Filter 1.25"

To maximize the performance of your Optolong CLS Filter 1.25":

• 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 narrowband filters for capturing different wavelengths of light from celestial objects.
• Regular Maintenance: Clean your filters and telescope lenses regularly to ensure the highest image quality.

FAQ: Common Questions About the Optolong CLS Filter 1.25"

Q: Can I use the Optolong CLS Filter with any telescope? A: Yes, the filter is compatible with any telescope that accommodates 1.25-inch eyepieces or camera adapters.

Q: Does the filter effectively reduce light pollution? A: Yes, the filter is designed to block major emission lines of artificial 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 purposes, offering versatility and high performance for all astronomical activities.

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

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 plastic case when not in use to prevent damage.

Why Should You Buy the Optolong CLS Filter 1.25"?

The Optolong CLS Filter 1.25" is an essential tool for anyone serious about astronomy and astrophotography. Its ability to block unwanted light pollution and improve the visibility of celestial objects makes it invaluable for capturing detailed images of the night sky. With its high-quality construction and advanced features, this filter will significantly improve your stargazing and imaging experience.

Specifications of the Optolong 1.25" CLS Filter

• Filter Size: 1.25 inches
• Transmission: 95% at main nebula emission lines (Ha 656nm, OIII 496nm & 500nm, SII 672nm, H-beta 486nm)
• Blocking: 0.1% at off-band wavelengths (Na 589nm, Hg 435nm and 578nm)
• Optical Quality: Multi-layer anti-reflection coating, non-cementing optical substrate coating
• Material: Optical glass lens, aluminum frame
• Surface Quality: 60/40 according to MIL-O-13830
• Thread: Standard M26.5x0.6mm
• Shape: Round
• Net Weight: 3g / 0.12oz

Package Content

When you purchase the Optolong CLS Filter 1.25", you will receive:

• 1 x Optolong CLS Filter 1.25": 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 CLS Filter 1.25". 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 CLS Filter 1.25" is a powerful tool for any astronomer or astrophotographer looking to reduce the effects of light pollution and improve the visibility of celestial objects. 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 CLS 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 CLS Filter 1.25" today and start capturing the cosmos with unmatched clarity and precision.