Antlia OIII Edge Filter mit 4,5 nm Bandbreite, 36 mm ungefasst

Geschrieben von Aaron Urquhart
am 2025-07-22

"This filter sits in my 36?mm unmounted carousel and is used specifically for imaging oxygen-rich emission targets such as the Veil Nebula, Helix Nebula, or planetary nebulae like M27. I pair it with my mono camera and use it in the green channel for SHO compositions. It’s extremely effective for cutting through light pollution and isolating OIII at 500.7?nm. Recommended For •Astrophotographers doing narrowband imaging (SHO or HOO) •Those using monochrome cameras with filter wheels •Users imaging from suburban or light-polluted areas •Ideal for fast optics (f/2.8–f/5), especially RASA, Hyperstar, or Petzval systems Quality & Optical Performance •Passband centered at 500.7?nm with a tight 4.5?nm FWHM for strong isolation •Peak transmission >90% ensures high SNR and detail in faint structures •OD5 blocking eliminates nearby wavelengths and halos •Constructed on precision optical glass with high flatness and coating uniformity •Minimal bandshift down to f/3 — optimized for fast systems •Halo performance is excellent, even near bright stars or within dense star fields User Feedback (Summarized) OIII is notoriously tricky due to halos around bright stars, but Antlia’s EDGE design performs well. Users report clean separation of the OIII signal, no significant halos, and better star control than some older 6–7?nm filters. The Antlia OIII 4.5?nm EDGE filter is a precision tool for narrowband imaging with mono cameras. It delivers clear, high-contrast OIII data with low background and sharp star control. When paired with H-Alpha and SII EDGE filters, it completes a powerful SHO imaging set capable of rivaling premium brands. Recommended without hesitation for any serious narrowband imager looking to shoot faint structures, planetary nebulae, or star-forming regions with clarity. "