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Optolong L-Pro 77mm Camera Lens Filter for Sale

Optolong L-Pro 77mm Camera Lens Filter for Sale

Regular price $279.00 USD
Regular price $299.00 USD Sale price $279.00 USD
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Optolong L-Pro 77mm Filter

The Optolong L-Pro 77mm filter is designed to significantly improve the quality of your nighttime astrophotography. This advanced filter is meticulously crafted to filter out light pollution, allowing you to capture clear, high-contrast images of galaxies, nebulae, and other celestial objects. With its innovative design and multi-layer coatings, the Optolong L-Pro 77mm is a must-have for both amateur and professional astrophotographers looking to take their craft to the next level.

Key Features of the Optolong L-Pro 77mm

Manufacturing Excellence

The Optolong L-Pro 77mm filter is produced with precision in mind. Optolong employs fine polishing techniques to ensure optical accuracy on both sides of the filter. Achieving a λ/4 wave and less than 30 seconds parallelism, this filter sets a new standard for precision in astrophotography. The result is a filter that delivers exceptional clarity and sharpness, enhancing your ability to capture stunning nighttime images.

Advanced Cleaning Process

Each Optolong L-Pro 77mm filter undergoes an ultrasonic wave cleaning process using 13 tanks of purified water. This meticulous cleaning routine effectively removes impurities and dust, ensuring the filter is pristine and ready for optimal image quality. This attention to detail in the cleaning process is crucial for maintaining the filter’s performance and longevity.

Iro Source Assisted Coating

The L-Pro 77mm is fortified with Iro Source Assisted Coating, which provides durability, scratch resistance, and stability in central wavelength (CWL). This coating technology ensures the filter’s performance remains consistent across various temperatures and conditions, eliminating temperature-induced drift. This feature is vital for astrophotographers who often work in fluctuating environmental conditions.

Strict Quality Testing

Optolong subjects each L-Pro 77mm filter to rigorous testing using a spectrophotometer and laser interferometer to validate its spectrum and wavefront. This strict quality control ensures that every filter meets the high standards required for professional astrophotography. You can trust that each filter delivers the performance and reliability Optolong is known for.

Meticulous Packaging

The Optolong L-Pro 77mm comes meticulously packaged to ensure it arrives in pristine condition. The filter is housed in a silver carton, protected by a PP plastic box and an imported high-pressure EVA sleeve liner. This careful packaging process reflects Optolong’s commitment to quality and attention to detail.

Applications and Benefits

Applications of the Optolong L-Pro 77mm Filter

The Optolong L-Pro 77mm filter is ideal for a variety of astrophotography applications:

  • Deep-Sky Imaging: Perfect for capturing detailed images of distant galaxies, nebulae, and star clusters.
  • Milky Way Photography: Enhances contrast and clarity, making the intricate details of the Milky Way stand out.
  • Urban Astrophotography: Effectively reduces light pollution, allowing for clearer images even in light-polluted areas.

Benefits of Using the Optolong L-Pro 77mm Filter

  • Improved Image Quality: The filter effectively reduces light pollution, enhancing the clarity and contrast of your astrophotography images.
  • Durability and Reliability: The advanced coatings and rigorous quality testing ensure the filter is durable and reliable, providing consistent performance.
  • Versatility: Compatible with a wide range of cameras and lenses, making it a versatile addition to any astrophotography setup.
  • Ease of Use: Simple to attach and remove, the L-Pro 77mm filter integrates seamlessly into your existing equipment.

How to Use the Optolong L-Pro 77mm Filter

Attaching the Filter

  1. Choose the Correct Lens: Ensure that your camera lens is compatible with a 77mm filter size.
  2. Screw on the Filter: Gently screw the Optolong L-Pro 77mm filter onto the front of your camera lens. Ensure it is secure but do not overtighten.

Optimizing Your Setup

  1. Adjust Camera Settings: Set your camera to manual mode and adjust the ISO, aperture, and shutter speed to suit the lighting conditions and the celestial object you are photographing.
  2. Use a Tripod: For best results, mount your camera on a sturdy tripod to prevent any movement during long exposure shots.
  3. Focus Manually: Use manual focus to ensure your subject is sharp. A Bahtinov mask can help achieve precise focus on stars.

Capturing Images

  1. Frame Your Shot: Use your camera’s live view to frame your shot, ensuring that your subject is in the center of the frame.
  2. Take Test Shots: Take a few test shots to check exposure and focus. Adjust settings as necessary.
  3. Long Exposure: Use long exposure times to capture more light and reveal the details of faint celestial objects.

Post-Processing Tips

  1. Stack Images: Use image stacking software to combine multiple exposures, reducing noise and increasing detail.
  2. Adjust Levels and Curves: Fine-tune the brightness and contrast to bring out the details in your images.
  3. Remove Residual Light Pollution: Use software tools to further reduce any remaining light pollution effects.

Frequently Asked Questions (Q&A)

Q: Can the Optolong L-Pro 77mm filter be used for solar photography?

A: No, the Optolong L-Pro 77mm filter is not designed for solar photography. It is specifically crafted for nighttime astrophotography to reduce light pollution and enhance the clarity of celestial objects.

Q: Is the filter compatible with all camera lenses?

A: The Optolong L-Pro 77mm filter is compatible with any camera lens that has a 77mm filter thread. Always check your lens specifications to ensure compatibility.

Q: How does the filter reduce light pollution?

A: The Optolong L-Pro 77mm filter uses a unique blend of multi-layer coatings to selectively block specific wavelengths of artificial light, such as streetlights, while allowing the natural light from stars and other celestial objects to pass through.

Q: Can I use this filter in conjunction with other filters?

A: Yes, the L-Pro 77mm filter can be used with other filters. However, ensure that stacking filters do not cause vignetting or reduce image quality.

Q: What maintenance is required for the Optolong L-Pro 77mm filter?

A: Regular cleaning with a soft brush or lens cleaning cloth is recommended. Store the filter in its protective case when not in use to prevent dust and scratches.

Why Should You Buy the Optolong L-Pro 77mm Filter?

The Optolong L-Pro 77mm filter is an essential tool for any astrophotographer aiming to achieve high-quality, clear images of the night sky. Here are compelling reasons to consider this filter:

Superior Image Quality

The primary benefit of the Optolong L-Pro 77mm filter is the significant improvement in image quality. By effectively reducing light pollution, it enhances the clarity and contrast of your astrophotography images, allowing you to capture stunning details of celestial objects.

Versatility and Compatibility

This filter is compatible with a wide range of camera lenses that have a 77mm filter thread, making it a versatile addition to your astrophotography toolkit. Whether you are shooting with a DSLR, mirrorless camera, or other setups, the L-Pro 77mm filter integrates seamlessly with your equipment.

Durable and Reliable

Crafted with advanced coating technologies and subjected to rigorous quality testing, the Optolong L-Pro 77mm filter is built to last. Its durability and reliability ensure consistent performance, even in challenging conditions.

Ease of Use

The filter is simple to attach and use, making it accessible for both beginners and experienced astrophotographers. Its design allows for quick installation and removal, providing convenience during your astrophotography sessions.

Professional Results

For astrophotographers aiming to achieve professional-quality results, the Optolong L-Pro 77mm filter is an invaluable tool. Its ability to filter out light pollution and deliver sharp, high-contrast images makes it a crucial component of any serious astrophotography setup.

Popular Targets for the Optolong L-Pro 77mm Filter


  • Andromeda Galaxy (M31): Capture the intricate details of our nearest galactic neighbor with enhanced contrast and clarity.
  • Whirlpool Galaxy (M51): Reveal the stunning spiral arms and core of this beautiful galaxy.


  • Orion Nebula (M42): The L-Pro 77mm filter allows you to capture the vibrant colors and intricate structures of this famous nebula.
  • Lagoon Nebula (M8): Enhance the details of this vast interstellar cloud and star-forming region.

Star Clusters

  • Pleiades (M45): Highlight the bright stars and subtle nebulosity of this iconic open star cluster.
  • Hercules Cluster (M13): Resolve the dense core and outer regions of this impressive globular cluster.

Advanced Techniques for Achieving the Best Results

Custom White Balance

Set a custom white balance in your camera to account for the filter’s color profile. This can often result in more natural-looking images straight out of the camera.

Fine-Tuning Focus

Use a focus peaking feature if available on your camera. This feature highlights the areas in focus, making it easier to achieve sharp stars.

Polar Alignment

For longer exposures, ensure your camera or telescope mount is properly polar aligned. This reduces star trails and ensures the best possible image quality.

FAQs: In-Depth Answers

Q: Can the L-Pro 77mm filter be used for video astrophotography?

A: Yes, the L-Pro 77mm filter can be used for video astrophotography. It will help reduce light pollution and enhance the clarity and contrast of the video footage. Ensure your camera settings are optimized for low-light conditions to get the best results.

Q: How does the filter affect the overall exposure time?

A: The L-Pro 77mm filter may require slightly longer exposure times due to the light it blocks. However, the improvement in image clarity and reduction in light pollution generally outweigh the need for longer exposures.

Q: Is the filter effective in all light pollution conditions?

A: The filter is designed to be effective in most light pollution conditions, but its performance can vary depending on the intensity and type of light pollution. Testing the filter in your specific location will give you the best understanding of its effectiveness.

Q: Can this filter be used with mirrorless cameras?

A: Yes, the Optolong L-Pro 77mm filter is compatible with mirrorless cameras, as long as the lens has a 77mm filter thread. Ensure your camera settings are optimized for astrophotography to maximize the filter’s benefits.


  • Mode: L-Pro 77mm
  • Size: 77mm
  • Brand Name: Optolong
  • Usage: Camera lens, not for telescope
  • Important Note: Not for solar photography!

Package Content

When you purchase the Optolong L-Pro 77mm filter, you receive a well-packaged product designed to arrive in perfect condition:

  • Optolong L-Pro 77mm Filter
  • Protective PP Plastic Box
  • Imported High-Pressure EVA Sleeve Liner
  • Silver Carton Packaging
  • Instruction Manual
  • Warranty Card

Optolong L-Pro for 77mm Camera Lens

The Optolong L-Pro 77mm filter is a highly effective tool for astrophotographers aiming to improve their nighttime images. With its ability to reduce light pollution and enhance the clarity and contrast of celestial objects, this filter is indispensable for capturing stunning astrophotography. Its versatility, durability, and ease of use make it suitable for both amateur and professional photographers.

By choosing the Optolong L-Pro 77mm filter, you are investing in superior image quality and reliable performance. Its precision engineering and advanced coatings ensure that you can achieve professional-grade results, making your astrophotography sessions more rewarding. Whether you are photographing galaxies, nebulae, or star clusters, this filter will help you capture the beauty of the cosmos with unprecedented detail and clarity.

Order your Optolong L-Pro 77mm filter today and elevate your astrophotography to new heights. With Optolong’s commitment to quality and innovation, you can trust that this filter will be a valuable addition to your astrophotography equipment.

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77mm Lens Filter

Optolong Filters