Optics

OIII filters selectively transmit light with a wavelength of 501 nanometers, corresponding to the spectrum lines of doubly ionized oxygen. These emission lines are characteristic of planetary nebulae and some emission nebulae, allowing these celestial objects to remain visible while other wavelengths are effectively blocked by the filter.

The OIII filter exclusively permits light with a wavelength of 501 nanometers, corresponding to the spectral lines of doubly ionized oxygen. These lines are emitted by planetary and some emission nebulae, allowing these celestial objects to remain visible while other wavelengths are filtered out. 

OIII Filter: The narrowband O-III 3nm filter is tailored for observing nebulae, permitting a 3nm bandwidth of light centered on a 500nm wavelength, aligning with OIII emission lines, while effectively screening out all other wavelengths.

OIII Filter: The narrowband O-III 3nm filter is specifically crafted for observing nebulae, allowing a 3nm bandwidth of light centered on a 500nm wavelength, corresponding to OIII emission lines, while effectively excluding all other wavelengths.

Transmission: 97%

SII Filter: The narrowband S-II 7nm filter selectively allows light at a 672nm wavelength with a bandpass of 3nm, specifically crafted for nebula photography.

SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, tailored for nebula photography.

SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, specifically crafted for nebula photography.

SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, specifically engineered for nebula photography.

SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, specifically crafted for nebula photography.

SII Filter: The narrowband S-II 7nm filter permits light at a 672nm wavelength with a bandpass of 3nm, specifically engineered for nebula photography.

SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, tailored for nebula photography.

The Baader UHC-L filter serves as a comprehensive anti-light pollution solution, effectively blocking emissions from LED lamps, particularly in the blue spectrum.

OIII filters selectively permit light with a wavelength of 501 nanometres, corresponding to the spectrum lines of doubly ionized oxygen. This characteristic emission is emitted by planetary nebulae and certain emission nebulae, allowing these celestial objects to remain visible while filtering out other wavelengths.

SII Filter: The narrowband S-II 7nm filter allows light at a 672nm wavelength with a bandpass of 3nm, tailored specifically for nebula photography.

Celestron's LPS nebula filter designed for RASA 8 astrographs enhances contrast by effectively suppressing stray light.

The H-alpha filter selectively allows light at a 656nm wavelength, making it the ideal narrowband filter for H-alpha astrophotography. It excels in high-contrast imaging, effectively revealing intricate details of nebulae even in areas with significant light pollution.

The H-alpha filter allows light at a 656nm wavelength, making it the top choice for narrowband H-alpha astrophotography. It excels in high-contrast imaging, unveiling intricate details of nebulae even in areas affected by significant light pollution.

This filter effectively blocks common spectral lines emitted by lighting sources, thus minimizing sky glow.

LRGB Filter Set: Ideal for astrophotography with monochrome CCD cameras.

OIII Filter: The narrowband O-III 3nm filter is specifically crafted for nebula observation, allowing a 3nm bandwidth of light centered on a wavelength of 500nm, corresponding to OIII emission lines, while effectively blocking out all other wavelengths.

Passband (nm): 775

UV photometric filter from the UVBRI series - Features a durable, high-transmission sputtered coating.

OIII filters selectively allow light with a wavelength of 501 nanometers, corresponding to the spectrum lines of double ionized oxygen, to pass through. These lines are emitted by planetary nebulae and some emission nebulae, enabling these objects to remain visible while other wavelengths are blocked by the filter.