Optolong IR Pass 685nm Filter 2"

Optolong IR Pass 685nm Filter

Introducing the Optolong IR Pass 685nm Filter 2"

The Optolong IR Pass 685nm Filter 2" is an essential tool for astronomers and astrophotographers seeking to reduce the effects of atmospheric seeing and improve contrast in planetary photography. Designed to block wavelengths below 670nm, this filter enhances surface detail and minimizes distortions caused by atmospheric turbulence. By shifting the imaging spectrum into the infrared range, the Optolong IR Pass filter leverages the sensitivity of CCD and CMOS sensors to IR light, delivering sharper and more detailed images of the Moon and planets.

Features of the Optolong IR Pass 685nm Filter

The Optolong IR Pass 685nm Filter 2" is packed with advanced features that make it an indispensable tool for serious astronomers and astrophotographers:

• High Transmission Rate: The filter offers a 95% transmission at the 685nm bandpass, ensuring bright and clear IR images.
• Effective Wavelength Blocking: Blocks wavelengths below 670nm, reducing the effects of seeing and enhancing contrast and surface detail.
• Superior Material Quality: Made with 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: CNC machined from black anodized aero-metal, the 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 IR Pass 685nm Filter 2"

This filter is ideal for a variety of astronomical applications, particularly where managing atmospheric seeing and improving contrast is crucial:

• Planetary Imaging: Perfect for capturing detailed images of planets like Jupiter, Saturn, and Mars, reducing atmospheric distortions.
• Lunar Imaging: Enhances the surface detail of the Moon, providing sharper and more detailed views.
• IR-LRGB Imaging: Suitable for use in IR-LRGB imaging to improve the overall quality and detail of celestial objects.
• Visual Observation: Provides maximum contrast and detail for visual observation of planets and the Moon.

Benefits of Using the Optolong IR Pass 685nm Filter

Incorporating the Optolong IR Pass 685nm Filter 2" into your astronomical setup offers numerous benefits:

• Improved Image Clarity: Reduces the effects of atmospheric seeing, resulting in sharper and more detailed images.
• Enhanced Contrast: Increases the contrast of planetary and lunar surfaces, making them stand out more clearly.
• Versatile Use: Suitable for a wide range of astronomical observations, including planetary and lunar imaging.
• 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 IR Pass 685nm Filter 2" Used For?

The Optolong IR Pass 685nm Filter 2" is designed to improve the visibility and detail of celestial objects by shifting the imaging spectrum into the infrared range. This makes it ideal for:

• Planetary Imaging: Reducing atmospheric distortions and enhancing surface detail and contrast for planets like Jupiter, Saturn, and Mars.
• Lunar Imaging: Providing sharper and more detailed views of the Moon’s surface.
• IR-LRGB Imaging: Enhancing the quality and detail of IR-LRGB images by blocking unwanted wavelengths and allowing only IR light to pass.
• Visual Observation: Improving the contrast and detail of celestial objects during visual observation.

Usage Instructions for the Optolong 2" IR Pass 685nm Filter

Using the Optolong IR Pass 685nm Filter 2" 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 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 IR Pass 685nm Filter

To maximize the performance of your Optolong IR Pass 685nm Filter 2":

• 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.
• Proper Storage: Always store the filter in its protective case to prevent scratches and other damage.

FAQ: Common Questions About the Optolong IR Pass 685nm Filter 2"

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

Q: How does the filter improve planetary imaging? A: By blocking wavelengths below 670nm, the filter reduces atmospheric distortions and enhances surface detail and contrast, resulting in clearer and sharper images of planets.

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 IR Pass 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 IR Pass 685nm Filter?

The Optolong IR Pass 685nm Filter 2" is an essential tool for anyone serious about astronomy and astrophotography. Its ability to reduce the effects of atmospheric seeing and improve the visibility of celestial objects makes it invaluable for capturing detailed images of planets and the Moon. Whether you're observing Jupiter's cloud bands, Saturn's rings, or the craters on the Moon, this filter ensures you get the clearest and most accurate view possible. With its high-quality construction and advanced features, the Optolong IR Pass 685nm Filter 2" will significantly improve your stargazing and imaging experience.

Specifications of the Optolong IR Pass 685nm Filter 2"

• Filter Size: 2 inches
• Material: B260 substrate material from Germany, 2.0mm thick
• Transmission: 95% at 685nm bandpass
• Blocking: Wavelengths below 670nm
• 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 IR Pass 685nm Filter 2", you will receive:

• 1 x Optolong IR Pass 685nm Filter 2": 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 IR Pass 685nm Filter 2". 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 IR Pass 685nm Filter 2" is a powerful tool for any astronomer or astrophotographer looking to manage the effects of atmospheric seeing 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 IR Pass 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 IR Pass 685nm Filter 2" today and start capturing the cosmos with unmatched clarity and precision.