Astrophotography Filters

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Astrophotography Filters

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QHY MiniCAM8 Filters

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From $179.00

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(Only Compatible with QHY MiniCAM8 Camera)

Deep Sky Filter Set
Includes LRGB and narrowband SHO filters sized at 19 mm × 12 mm × 1.1 mm. The LRGB filters have an optical density (OD) of 3, while the narrowband filters have an OD of 5, providing high contrast and minimal light leakage for deep sky imaging.

Planetary Filter Set
Ideal for planetary observation, this set includes LRGB filters along with a 20nm Methane filter, 40nm UV filter, and 10nm Sodium (Na) filter. Great for capturing fine atmospheric and spectral details.

Photometric Filter Set
A complete Sloan filter set: u’, g’, r’, i’, z’. Suitable for scientific imaging and precise photometric measurements.

Ar III Standalone Filter
The Ar III (Argon III) filter is a narrowband filter centered around 713nm, designed to capture the specific emission line of triply ionized argon. This emission line is commonly observed in planetary nebulae, H II regions, emission-line galaxies, and in the spectroscopy of ionized gases in laboratory plasmas.

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Antlia SII 3nm 2inch Filter

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$679.00

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Antlia SII 3nm Pro narrowband filter optimizes the FWHM (full-width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance the contrast of emission targets by lowering the unwanted background signal. Antlia SII 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 SII 3nm Pro filters can be used with nearly all systems as fast as f/3 with minimal loss in emission signal and meet 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

A steep spectral profile minimizes halos around bright stars

A single substrate to eliminate internal reflections

Narrowband Objects: SII Emission Nebulae, Planetary, Wolf-Rayet Nebulae and Supernova Remnants

Use in light-polluted areas and dark sites

Extend imaging time when the moon is up

All Antlia narrowband Pro filters can be used down to F/3 with a 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

This filter is not suited to deep-sky objects that do not contain SII emissions.

Technical Specifications: