
Antlia Dual Band Visual OIII & Hb Filter - 1.25"
The Antlia Dual Band visual Oiii and Hb filter enables you to see emission nebulae, planetary nebulae and supernova remnants in heavily light-polluted skies!
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The Antlia H-Beta and OIII filter presents a potent tool for astronomers seeking to delve into the wonders of the night sky, even under light-polluted conditions. This versatile filter caters to both visual observation and astrophotography, empowering you to witness phenomena previously hidden or obscured.
Some of the objects that you can see:
- Emission Nebulae: The Veil Nebula or the breathtaking Lagoon Nebula.
- Planetary Nebulae: The Ring Nebula's delicate ring to the Cat's Eye Nebula's intricate structure.
- Supernova Remnants: The Veil Nebula or Cassiopeia A.
Specifications:
- Superior Transmission: Capture over 90% of light at crucial wavelengths (OIII and H-Beta), ensuring optimal brightness and detail.
- Exquisite Contrast: Achieve exceptional contrast by effectively blocking unwanted light pollution, moonlight, and skyglow
- Impeccable Clarity: Edge-blackening technology minimizes stray light and reflections, delivering razor-sharp views.
- Parfocal Design: Seamlessly switch between filters without requiring refocusing, maximizing observing efficiency.
- Astrophotography Ready: Capture stunning color images compatible with your astrophotography setup.
- Unwavering Quality: Each filter undergoes rigorous individual testing to ensure peak performance.
A Note of Caution: Never use this filter, or any filter for that matter, to observe the sun directly. Permanent eye damage may occur.
Passing band | H-b, OIII |
Glass thickness |
2.0 mm ±0.05 |
Optical flatness |
1/4 λ (wavefront) |
Bandpass transmission | >90% |
Off-band transmission | OD4 @ 300-1000 nm |
Coating | Double-sided multilayer nano-coating |
Surface quality | 60/40 (in accordance with US military watch MIL-O-13830) |
Parallelism | 30" |
SKU |
AN-HB-OIII1.25 |
Antlia: Experts in Astronomy Filters
Antlia Astronomy Filters are built by Deep-Sky Photography Enthusiasts for Enthusiasts all around the globe. Antlia prides itself on producing a series of exceptional quality, fully multicoated narrowband, dual-band, planetary and LRGB filters for astrophotography, designed for use with a range of monochrome and colour DSLR, CMOS and CCD cameras.
Product Code: ANT-HB-OIII1.25