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Antlia Edge Ha 4.5nm Narrowband Filter - 1.25
Antlia's 4.5nm Edge Ha 1.25inch filter captures faint nebulae details with laser focus. With contrast its fast optic compatibility, and parfocality, it's your gateway to stunning deep-sky astrophotography.
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Experience unparalleled astrophotographic results with the Antlia H-Alpha 4.5nm Edge filter, designed to elevate your deep-sky imaging capabilities. This meticulously crafted filter offers exceptional performance at an accessible price point, making it a valuable asset for both seasoned astrophotographers and those embarking on their celestial journey.
Key Features:
Exceptional Narrowband Isolation: The 4.5nm bandpass meticulously targets the Hydrogen Alpha line (656.3nm), offering a 1.5% transmission window within the visible spectrum. This translates to superior signal-to-noise ratio and breathtaking contrast, revealing the intricate details of nebulae with remarkable clarity.
Unrivaled Contrast & Light Suppression: Experience a deeper, darker background thanks to the advanced edge-blackening technology. This effectively eliminates stray light and internal reflections, ensuring the nebulae become the true focal point against a void of inky blackness.
Uncompromised Performance for Fast Optics: Utilize the filter without sacrificing image quality, even with systems as fast as f/3. The Antlia Edge delivers exceptional performance with Hyperstar and RASA setups, capturing fleeting details with utmost precision.
Rigorous Quality Control & Parfocality: Each filter undergoes meticulous individual testing, ensuring they meet the highest quality standards. The tight tolerance of the substrate guarantees a maximum deviation of only ±0.05, making them perfectly parfocal for seamless switching between filters.
Simplified Workflow: Eliminate the need for a separate IR-cut filter. The Antlia Edge effectively blocks both ultraviolet and infrared light, streamlining your astrophotography setup and maximizing exposure time for capturing faint details.
Specifications:
| Passing band | 4.5 nm (FWHM) |
|---|---|
| Glass thickness | 2.0 mm ±0.05 |
| Optical flatness | 1/4 λ (wavefront) |
| Bandpass transmission | 90% |
| Off-band transmission | OD5 @ 300-1050 nm |
| Coating | Double-sided multilayer nano-coating |
| Surface quality | 60/40 (in accordance with US military watch MIL-O-13830) |
| Parallelism | <30" |
| Glass type | Monolithic optical substrate (non glued) |
| Filter size | Mounted 1.25", 2", Unmounted 31mm, 36mm, 50mm round |
Important Safety Note: Never attempt to observe the sun with this filter. Doing so can result in irreversible eye damage.
Antlia: Experts in Astronomy Filters
Antlia Astronomy Filters are built by Deep-Sky Photography Enthusiasts for Enthusiasts of Astrophotography 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-Ha4.5nmEDGE1.25