CCD OIII Filter

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O-III Filters

The O-III line at 501nm is an important emission line of many Nebula objects and SN remnants. An extreme background contrast can be achieved even in urban areas with narrow-band filters.

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Picture of Astronomik OIII-CCD 12 nm MFR 2"

Astronomik OIII-CCD 12 nm MFR 2"

Astronomik OIII-CCD Filter with 12 nm FWHM in 2".

399.00 € 359.00 €

Estimated delivery time : 3-4 days

Picture of Astronomik OIII-CCD 6nm MFR 1,25"

Astronomik OIII-CCD 6nm MFR 1,25"

Astronomik OIII-CCD Filter with 6 nm FWHM in 1.25".

269.00 € 242.00 €

Estimated delivery time : 1-4 weeks

Picture of Astronomik OIII-CCD 6nm MFR 2"

Astronomik OIII-CCD 6nm MFR 2"

Astronomik OIII-CCD Filter with 6 nm FWHM in 2".

570.59 € 513.53 €

Estimated delivery time : 2-3 days

Picture of Baader O III nebular filter - 1.25" - 10 nm HBW

Baader O III nebular filter - 1.25" - 10 nm HBW

The O-III filter is especially useful for planetary nebulae. In the [O III] line, they show their most interesting structures.

95.00 €

Estimated delivery time : 4-8 weeks

Picture of Optolong OIII Filter 3nm 2"

Optolong OIII Filter 3nm 2"

Optolong 3nm OIII - Narrow band filter for astrophotography - Shooting with extreme contrast even with strong light pollution.

2" mounted with filter mount
Suitable for telescopes and lenses with focal ratios of f/3 and lower
Blackened edges to avoid internal reflections
Extremely narrow bandwidth of only 3 nm for maximum contrast
Central wavelength 501 nm

455.00 €

Estimated delivery time : 3-4 weeks