Antlia SHO 3nm Pro filters 1.25 inch - The Binocular and Telescope Shop
Antlia SHO 3nm Pro filters 2 inch - The Binocular and Telescope Shop
Antlia SHO 3nm Pro filters 36mm - The Binocular and Telescope Shop
Antlia SHO 3nm Pro filters 31mm - The Binocular and Telescope Shop

Antlia SHO 3nm Pro filters

SKU: 040034
Barcode: 0799787272518

$1,310.00

Size: 1.25 inch Mounted
  • 1.25 inch Mounted
  • 2 inch Mounted
  • 31mm Unmounted
  • 36mm Unmounted
In stock

Delivered to anywhere is Australia and New Zealand.
Orders placed before 2 PM are usually shipped the same day.
Antlia SHO 3nm Pro filters

$1,310.00

$1,310.00

Choose option
Size: 1.25 inch Mounted
  • 1.25 inch Mounted
  • 2 inch Mounted
  • 31mm Unmounted
  • 36mm Unmounted
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Same day shipping

If you order before 2pm we will ship your items same day.
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Expert aftersales support

We fully support our products!
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Minimum 2-Year Warranty. 

+ extended manufacturer warranties
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Aussie Owned & Stocked

Our store is Australian owned and stocked.

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The Antlia 3nm Pro Ultra Narrowband filter set includes the following items:

  • Antlia H-Alpha 3nm filter
  • Antlia OIII 3nm filter
  • Antlia SII 3nm filter

Antlia SHO Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance contrast of emission targets by lowering the unwanted background signal. Antlia SHO 3nm Pro filter is designed to deliver 88% transmission at the 671.6nm line which provides you with the maximum signal and well defined nebulae structures.

Conventional broader narrowband filters cause a heavy loss in transmission due to the strong (Center Wavelength (CWL)-shift. We guarantee T>88% within 1nm range of the center bandwidth,which means that the 3nm Pro narrowband filter can guarantee high transmittance for working with both long focal ratios and fast optical systems. Blue-shift data show that Antlia 3nm Pro filters can be used with nearly all systems as fast as f/3 with minimal loss in emission signal and meets the requirements of fast optics like Hyperstar and RASA.

The out of band blocking specification is rated OD5 (0.001%) which delivers an excellent SNR(signal to noise ratio) and effective cut-off rate to minimize interference from other wavelengths. Improved sharp cut-off astrophotography 3nm Pro filters are designed to minimize halos around bright stars.

Application and Performance:
  • High transmittance and smallest bandwidth to maximize contrast
  • Steep spectral profile minimizes halos around bright stars
  • A single substrate to eliminate internal reflections
  • Narrowband Objects: Emission Nebulae, Planetary, Wolf Rayet Nebulae and Supernova Remnants
  • Use in light polluted areas and dark sites
  • Extends imaging time when the moon is up
  • Antlia narrowband Pro filters can be used down to F/3 systems with slight loss of signal
  • All Antlia Narrowband filters are edge blackened to eliminate internal reflections from stray light
  • Superior optical reliability reduces post image processing

 

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