Antlia Filters OIII 3nm Pro: Precision Crafted for Enhanced Nebulae Imaging

The Antlia OIII 3nm Pro narrowband filter is a precision-engineered marvel, created to push the boundaries of nebulae imaging. With a finely-tuned FWHM of 3nm, this filter dramatically boosts contrast by reducing background noise, allowing the true structure of emission targets to shine through. Designed for both amateur and professional astronomers, the OIII 3nm Pro filter boasts an impressive 85% transmission at the critical 500.7nm line, ensuring that every captured image is rich with detail and depth.

Key Features:

• Optimized FWHM: 3nm bandpass for superior contrast and clarity in nebulae structures.
• High Transmission Rates: 85% at the 500.7nm line, maximizing signal capture.
• Versatile Compatibility: Ideal for long focal ratios and fast optical systems, including f/3, Hyperstar, and RASA.
• Advanced Blocking: Rated OD5 (0.001%) to diminish wavelength interference and enhance SNR.
• Minimized Star Halos: Designed to reduce halos for crisper astrophotography.

Usage Cautions:

• Not for Solar Use: Avoid solar observing and imaging to prevent eye damage.
• Not for Visual Observation: Specifically crafted for imaging, not suitable for visual observation.
• Safety Warning: Never observe the sun directly with this filter.

Antlia's commitment to excellence is evident in the meticulous testing and scanning of each OIII 3nm Pro filter, ensuring compliance with high-performance standards. The painstaking production process may contribute to a higher cost, but the exceptional contrast and signal quality justify the investment. For astronomers seeking to capture the universe's nebulous artistry with unmatched precision, the Antlia OIII 3nm Pro filter is the definitive choice, offering a price to performance ratio that stands out in the market.

Specifications

• Peak Contrast Enhancement: Delivers the smallest bandwidth for maximum contrast in images.
• Halo Reduction: The steep spectral profile significantly minimizes halos around stars.
• Reflection Prevention: Designed with a single substrate to eliminate internal reflections.
• Narrowband Focus: Ideal for OIII emission nebulae, planetary nebulae, Wolf Rayet nebulae, and supernova remnants.
• Light Pollution Resistance: Performs exceptionally in both urban and rural skies.
• Moonlight Imaging: Allows for extended imaging sessions, even with moonlight present.
• Fast Optics Compatibility: Suitable for use with F/3 systems, maintaining high signal integrity.
• Stray Light Elimination: Edge blackening on all filters to prevent internal reflections.
• Optical Reliability: Superior manufacturing reduces the need for extensive post-processing.
• Specificity: Tailored for deep sky objects rich in OIII emissions.

Technical Excellence:

• Quality Substrate: Utilizes an optical-grade substrate for precision.
• Filter Thickness: Maintains a standard 2mm thickness within a ±0.05mm tolerance.
• Defined FWHM: A narrow 3nm full width at half maximum.
• Central Wavelength Clarity: Centered at 500.7nm for clear OIII data.
• Transmittance Assurance: More than 85% peak transmission.
• Stringent Blocking: Over 5 OD to ensure clean data capture.
• Surface Standard: 60/40 scratch/dig ratio, compliant with MIL-O-13830.
• Wavefront Accuracy: Lambda/4 precision for sharp imaging.
• Exact Parallelism: Ensured to be less than 30 arcseconds for consistent focus.

Durability and Assurance:

• Warranty Protection: 3-year guarantee against delamination.