Optolong OIII Filter 2 Inch 18nm

Optolong OIII 2" Inch Filter

Introducing the Optolong OIII Filter 2 Inch 18nm

When it comes to astrophotography and deep-sky observation, the quality of your equipment can make all the difference. The Optolong OIII Filter 2 Inch 18nm is a premier choice for both amateur and professional astronomers who seek to capture the night sky's most elusive details. This high-quality filter is designed to selectively transmit the light emitted by doubly ionized oxygen in nebulae, making it an indispensable tool for observing and photographing faint celestial objects.

Outstanding Features of the Optolong O-III 2 Inch Filter

The Optolong OIII Filter 2 Inch 18nm stands out with a variety of top-tier features that cater to the needs of serious astronomers:

• Fine-Optically Polished Filter Substrate: The filter substrate is fine-optically polished to 1/4 wave with less than 30 parallelism over both surfaces. This ensures minimal light scatter and superior image clarity.
• Superior Surface Quality: Complying with the MIL-O-13830 standard, the filter boasts a surface quality of 60/40, which translates to exceptional durability and performance.
• High Transmission Rate: The filter guarantees 90% transmission at the critical wavelengths of 495.9nm and 500.7nm, providing clear and vivid images of nebulae.
• Low Transmission of Unwanted Light: It offers 0.1% transmission at 435nm and 578nm for Hg and at 589nm for Na, effectively cutting out unwanted light pollution.
• Advanced Coating Procedure: Utilizing Optolong’s planetary rotation system, the filter undergoes a homogenous and precise coating process, ensuring high value transmission of pass-band and optical density of off-band.
• Thin Metal Cell Design: The filter’s thin metal cells offer a clear aperture of 45mm, maximizing the field of view while maintaining a lightweight structure.

Applications of the Optolong OIII Filter 2 Inch 18nm

This filter is ideal for a range of applications, including:

• Astrophotography: Enhance your astrophotography with crisp, high-contrast images of nebulae, even from light-polluted areas.
• Visual Observation: Perfect for deep-sky observation, the filter allows you to see nebulae that are typically invisible to the naked eye.
• Scientific Research: Suitable for professional astronomers and researchers who require precise and reliable optical performance.

Benefits of Using the Optolong OIII Filter 2 Inch 18nm

The Optolong OIII Filter provides numerous benefits that will enhance your stargazing experience:

• Enhanced Clarity: Achieve sharper, more detailed images of nebulae.
• Reduced Light Pollution: Effectively cuts through light pollution, allowing for better observation from urban areas.
• Durable and Reliable: High-quality materials and manufacturing processes ensure long-lasting performance.
• Versatile Use: Suitable for both visual observation and astrophotography, making it a versatile addition to your astronomical toolkit.

What is the Optolong OIII Filter 2 Inch 18nm Used For?

This filter is specifically designed to improve the visibility of celestial objects, particularly nebulae. By isolating the emission lines of doubly ionized oxygen (OIII), it enhances the contrast of these objects against the night sky, making them more visible through your telescope.

Usage Instructions for the Optolong OIII Filter 2 Inch 18nm

Using the Optolong OIII Filter is straightforward. Here’s a step-by-step guide to get you started:

1. Attach the Filter: Secure the filter to the eyepiece of your telescope.
2. Focus Your Telescope: Adjust your telescope’s focus to get a clear view of your target object.
3. Observe or Photograph: Start observing or capturing images of nebulae with enhanced clarity and contrast.
4. Store Properly: After use, store the filter in its protective plastic case to prevent damage.

Tips for Getting the Best Results with the Optolong OIII Filter 2 Inch 18nm

To maximize the performance of your Optolong OIII Filter:

• Use Under Clear Skies: For optimal results, use the filter under clear and dark skies.
• Combine with Other Filters: Consider combining the OIII filter with other narrowband filters to capture different wavelengths of light from celestial objects.
• Maintain Your Equipment: Regularly clean your filter and telescope lenses to ensure the best image quality.

Q&A: Common Questions About the Optolong OIII Filter 2 Inch 18nm

Q: Can I use the Optolong OIII Filter with any telescope? A: The Optolong OIII Filter is compatible with any telescope that accommodates 2-inch eyepieces.

Q: Does the filter reduce light pollution? A: Yes, the filter significantly reduces the effects of light pollution, allowing for clearer observation of nebulae even in urban areas.

Q: Is the filter suitable for both visual observation and astrophotography? A: Absolutely, the filter is designed for both visual observation and astrophotography, providing versatility for all types of astronomical activities.

Why Should You Buy the Optolong OIII Filter 2 Inch 18nm?

The Optolong OIII Filter 2 Inch 18nm is an essential tool for anyone serious about astronomy. Its ability to enhance the visibility of nebulae, coupled with its high-quality construction and ease of use, makes it a valuable addition to any astronomer's collection. Whether you're a hobbyist or a professional, this filter will help you see the universe in a whole new light.

Specifications of the Optolong OIII Filter 2 Inch 18nm

• Filter Size: 2 inches
• Bandwidth: 18nm
• Transmission:
  • 90% at 495.9nm and 500.7nm
  • 0.1% at 435nm and 578nm (Hg)
  • 0.1% at 589nm (Na)
• Surface Quality: 60/40 according to MIL-O-13830
• Coating: Homogenous and precise coating via planetary rotation system
• Clear Aperture: 45mm
• Case: Plastic case with high-pressure EVA material

Package Content

When you purchase the Optolong OIII Filter 2 Inch 18nm, you will receive:

• 1 x Optolong OIII Filter 2 Inch 18nm: The main component, ready to enhance your astronomical observations.
• 1 x Plastic Storage Box: Made from durable PP material to protect your filter when not in use.

Order Now

Don’t miss the opportunity to elevate your stargazing and astrophotography to new heights. Order the Optolong OIII Filter 2 Inch 18nm today and start capturing the beauty of the night sky like never before. Click the link below to add this essential tool to your astronomical toolkit.