The Antlia OIII 3nm 2inch filter is a narrowband filter designed to optimize the FWHM (full width half maximum) to 3nm bandpass. This results in enhanced contrast of emission targets by lowering the unwanted background signal. The filter is designed to deliver 85% transmission at ...The Antlia OIII 3nm 2inch filter is a narrowband filter designed to optimize the FWHM (full width half maximum) to 3nm bandpass.
This results in enhanced contrast of emission targets by lowering the unwanted background signal. The filter is designed to deliver 85% transmission at the 500.7nm line, providing maximum signal and well-defined nebulae structures. Unlike conventional broader narrowband filters, the Antlia OIII 3nm Pro filter can guarantee high transmittance for working with both long focal ratios and fast optical systems, such as those with a focal ratio as fast as f/3.
This makes it suitable for use with Hyperstar and RASA systems.