Astrodon High-End Filters for Astrophotography - from APM-Telescopes

Manufactures LRGB and other types of narrow band filters for CCD astrophotography - APM-Telescopes offers all the Astrodon Filters.
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Astrodon HA3_27R Narrowband Filter for Astrophotography
- 1,25" Narrowband Filter - mounted
- Emission line: H-Alpha 3nm bandwidth
- Thickness: 3mm - parfokal with all other Astrodon filters
- Transmission: better than 90%
- Best possible anti-reflection coating against halos around bright stars and ghost images
Astrodon HA5_27R Narrowband Filter for Astrophotography
- 1,25" Narrowband Filter - mounted
- Emission line: H-Alpha 5nm bandwidth
- Thickness: 3mm - parfokal with all other Astrodon filters
- Transmission: better than 90%
- Best possible anti-reflection coating against halos around bright stars and ghost images
Astrodon O3_27R Narrowband Filter for Astrophotography
- 1,25" Narrowband Filter - mounted
- Emission line: H-Alpha 3nm bandwidth
- Thickness: 3mm - parfokal with all other Astrodon filters
- Transmission: better than 90%
- Best possible anti-reflection coating against halos around bright stars and ghost images
Astrodon HA5_27R Narrowband Filter for Astrophotography
- 1,25" Narrowband Filter - mounted
- Emission line: H-Alpha 5nm bandwidth
- Thickness: 3mm - parfokal with all other Astrodon filters
- Transmission: better than 90%
- Best possible anti-reflection coating against halos around bright stars and ghost images
AstrodonSII3_27R Narrowband Filter for Astrophotography
- 1,25" Narrowband Filter - mounted
- Emission line: H-Alpha 3nm bandwidth
- Thickness: 3mm - parfokal with all other Astrodon filters
- Transmission: better than 90%
- Best possible anti-reflection coating against halos around bright stars and ghost images
Astrodon HA5_27R Narrowband Filter for Astrophotography
- 1,25" Narrowband Filter - mounted
- Emission line: H-Alpha 5nm bandwidth
- Thickness: 3mm - parfokal with all other Astrodon filters
- Transmission: better than 90%
- Best possible anti-reflection coating against halos around bright stars and ghost images