Optolong L-Pro 77mm Filter

Optolong L-Pro 77mm Filter: Your Ultimate Astrophotography Companion

Astrophotography and astronomical observations have reached new heights with the introduction of the Optolong L-Pro 77mm Filter. This advanced filter is designed to enhance the contrast of deep-sky objects and minimize sky background interference, making it an essential tool for both amateur and professional astronomers.

Why Choose the Optolong L-Pro 77mm Filter?

The Optolong L-Pro 77mm Filter is not just another filter; it is your ultimate companion for capturing the cosmos. Here’s why:

Enhanced Contrast and Clarity

Immerse yourself in the beauty of the cosmos with our advanced filter designed to selectively transmit the lines of deep-sky objects while suppressing various sources of light pollution. This filter is perfect for observing galaxies, globular clusters, and reflection nebulae with heightened contrast and clarity.

Effective Sky Background Reduction

Say goodbye to unwanted skyglow caused by atmospheric oxygen emissions. Our filter effectively reduces the sky background, allowing you to capture clearer and more detailed images even in light-polluted areas. This feature makes the Optolong L-Pro Filter ideal for urban astrophotography.

Minimal Impact on Color Rendition

Unlike traditional light pollution filters, the Optolong L-Pro Filter features a multi-bandpass design that minimizes its impact on color rendition. This makes it ideal for photographing continuum sources such as galaxies and globular clusters without compromising color accuracy.

Technical Specifications

Broadband Filter Design

• Filter Diameter: 77mm
• Filter Type: Broadband Filters
• Material: High-Quality Glass
• Mount Material: Aluminium
• Coating: Multiple plane-parallel coatings for optimal performance
• UV and IR Blocking Range: 700 - 1100 nm

High Transmission and Quality

The Optolong L-Pro Filter offers high transmission at the passband, ensuring that you capture the most light possible from your target objects. This high transmission rate is crucial for both visual observations and astrophotography, providing clearer and more detailed images.

Spectral Range

With a spectral range of 700 - 1100 nm, our filter not only enhances astronomical observations but also blocks UV and IR wavelengths for added protection and image quality. This ensures that your images are free from unwanted artifacts caused by these wavelengths.

Exceptional Optical Performance

Fine Polishing and Coating

Crafted from high-quality glass and featuring fine polishing and multiple plane-parallel coatings, our filter ensures precise optical performance with minimal wavefront distortion and exceptional parallelism. This attention to detail guarantees that your images are sharp and clear, free from optical distortions.

Durability and Scratch Resistance

Our filter is built to withstand the rigors of astrophotography, thanks to the Iro Source Assisted Coating technology. This technology provides durability, scratch resistance, and stability in central wavelength, unaffected by temperature changes. This ensures that your filter remains in perfect condition, providing consistent performance over time.

Rigorous Quality Testing

Each Optolong L-Pro Filter undergoes rigorous testing with spectrophotometers and laser interferometers to ensure optimal spectral performance and wavefront accuracy. This rigorous testing guarantees that you receive a qualified product for your astronomical pursuits.

Packaging and Protection

The filter is packaged in a silver carton with a PP plastic box and imported high-pressure EVA sleeve liner, ensuring safe transport and storage. This packaging ensures that your filter arrives in perfect condition, ready to use.

Compatibility and Application

Wide Compatibility

The Optolong L-Pro Filter is suitable for lenses with a 77mm filter thread, making it compatible with a wide range of DSLR cameras. Whether you are using a wide-angle lens or a telephoto lens, this filter will fit perfectly and deliver exceptional performance.

Versatile Usage

This filter is suitable for both visual observation and astrophotography. Whether you are observing the night sky through a telescope or capturing stunning images of deep-sky objects, the Optolong L-Pro Filter will enhance your experience.

Ideal for Reducing Light Pollution

The primary application of the Optolong L-Pro Filter is to reduce light pollution and enhance contrast in deep-sky objects. This makes it an invaluable tool for urban astronomers and astrophotographers who often have to deal with the challenges of light pollution.

How the Optolong L-Pro Filter Transforms Your Astrophotography

Capture Stunning Galaxies

Galaxies are some of the most popular targets for astrophotographers, but they can be challenging to capture due to their faintness and the interference of light pollution. The Optolong L-Pro Filter selectively transmits the light from galaxies while suppressing unwanted light pollution, allowing you to capture stunning images of these distant star systems.

Photograph Globular Clusters with Clarity

Globular clusters are dense collections of stars that can be difficult to photograph clearly due to their brightness and the surrounding skyglow. The Optolong L-Pro Filter enhances the contrast of these clusters, revealing their intricate structures and individual stars with clarity.

Reveal the Beauty of Reflection Nebulae

Reflection nebulae are some of the most beautiful objects in the night sky, but they can be difficult to photograph due to their faintness and the surrounding light pollution. The Optolong L-Pro Filter reduces the sky background, allowing you to capture the delicate tendrils and vibrant colors of these nebulae with unparalleled detail.

Advanced Coating Technology

Iro Source Assisted Coating

Our filter’s advanced Iro Source Assisted Coating technology ensures that the filter is durable and scratch-resistant. This coating also provides stability in the central wavelength, ensuring that the filter’s performance is not affected by temperature changes. This means you can rely on the Optolong L-Pro Filter to provide consistent, high-quality results in any conditions.

Optimal Spectral Performance

Rigorous Quality Testing

Every Optolong L-Pro Filter undergoes strict quality testing processes with spectrophotometers and laser interferometers. These tests ensure that each filter meets our high standards for spectral performance and wavefront accuracy. This rigorous testing guarantees that you receive a filter that performs flawlessly, providing you with the best possible results in your astronomical observations and astrophotography.

Packaging Details

The Optolong L-Pro Filter comes packaged in a silver carton with a PP plastic box and an imported high-pressure EVA sleeve liner. This packaging ensures that the filter is protected during transport and storage, so it arrives in perfect condition, ready to use.

Customer Satisfaction and Support

Warranty and Support

While specific warranty details are not provided, Optolong is committed to customer satisfaction and providing support for their products. If you encounter any issues with your filter, the company is dedicated to helping you resolve them quickly and efficiently.

User-Friendly Cleaning Method

The Optolong L-Pro Filter is easy to clean, thanks to its advanced coating and quality materials. The recommended cleaning method involves using an ultrasonic wave cleaning substrate with purified water, followed by cleaning with 13 tanks of purified water to effectively remove impurities and dust. This ensures that your filter remains clean and performs at its best, even after extended use.

Popular Astrophotography Lenses That Use 77mm Diameter Filters

1. Canon EF 24-70mm f/2.8L II USM
2. Nikon AF-S NIKKOR 24-70mm f/2.8E ED VR
3. Sigma 18-35mm f/1.8 DC HSM Art
4. Tamron SP 24-70mm f/2.8 Di VC USD G2
5. Sony FE 24-70mm f/2.8 GM
6. Canon EF 70-200mm f/2.8L IS III USM
7. Nikon AF-S NIKKOR 70-200mm f/2.8E FL ED VR

These lenses are highly regarded for their optical performance and are perfect for astrophotography, allowing the use of 77mm filters such as the Optolong L-Pro 77mm Filter to reduce light pollution and enhance image quality.

Optolong L-Pro 77mm

The Optolong L-Pro 77mm Filter is the ultimate tool for astrophotographers and astronomers who want to capture the beauty of the cosmos with enhanced contrast and clarity. Its advanced design, high-quality materials, and rigorous testing ensure that you receive a filter that performs flawlessly, providing you with the best possible results in your astronomical observations and astrophotography. Whether you are photographing galaxies, globular clusters, or reflection nebulae, the Optolong L-Pro Filter will help you capture stunning images with unparalleled detail. Order your Optolong L-Pro 77mm Filter today and take your astrophotography to new heights.