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Astro Imaging Filters
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Alpine Astronomical Baader CMOS-Optimized RGB-B Bandpass Filter (36mm Round, Unmounted)
BH # ALFCBRD36 MFR # FCB-RD36
Key Features
- RGB B Bandpass: 400-510nm
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader Clear Focusing Filter (65x65mm Square, Unmounted)
BH # ALFCSQ65 MFR # FC-SQ65
Key Features
- Full Wavelength Throughput
- Allows for Sharp Focus Before Imaging
- Unmounted for Versatile Use
- Anti-Reflection Fully Coated
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader Contrast Booster Filter (2" Eyepiece Filter)
BH # ALFCNBST2 MFR # FCNBST-2
Key Features
- Eliminates Color Error of Refractors
- Reduces Bluish Hue During Viewing
- Over 95% Transmission
- Phantom Coating
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader UHC-L Ultra-L-Booster Nebula Filter (36mm, Unmounted)
BH # ALFUHCLRD36 MFR # FUHCL-RD36
Key Features
- Blocks City Light Pollution
- Increases Contrast of Nebulae & Comets
- CMOS-Optimized
- Ideal for Astrophotography & Observation
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader S-II Narrowband Filter (1.25" Eyepiece Filter Filter)
BH # ALFCSIIN1 MFR # FCSIIN-1
Key Features
- 6.5nm FWHM, Ideal from f/10 to f/3.5
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader 6.5nm Narrowband O-III CMOS Filter (1.25" Eyepiece Filter)
BH # ALFCOIIIN1 MFR # FCOIIIN-1
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (50.4mm Round, Unmounted)
BH # ALFCUVIRRD50 MFR # FCUVIR-RD50
Key Features
- UV/IR Cut: 420-685nm
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader SLOAN/SDSS z-s' Filter (1.25" Eyepiece Filter)
BH # ALFSLN1Z MFR # FSLN-1Z
Key Features
- SLOAN-z-s' Bandpass Filter
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader SLOAN/SDSS y' Filter (1.25" Eyepiece Filter)
BH # ALFSLN1Y MFR # FSLN-1Y
Key Features
- SLOAN-y' Bandpass Filter
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader UBVRI Bessel V Filter (1.25" Eyepiece Filter)
BH # ALFBES1V MFR # FBES-1V
Key Features
- Photometric Filter: V Bandpass
- Suitable from f/15 to f/1.8
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader UBVRI Bessel R Filter (1.25" Eyepiece Filter)
BH # ALFBES1R MFR # FBES-1R
Key Features
- Photometric Filter: R Bandpass
- Suitable from f/15 to f/1.8
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader UBVRI Bessel B Filter (1.25" Eyepiece Filter)
BH # ALFBES1B MFR # FBES-1B
Key Features
- Photometric Filter: B Bandpass
- Suitable from f/15 to f/1.8
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader CMOS-Optimized RGB-R Bandpass Filter (2" Round, Unmounted) For FCCT
BH # ALFCR2U MFR # FCR-2U
Key Features
- RGB R Bandpass: 595-690nm
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader CMOS-Optimized RGB-G Bandpass Filter (2" Round, Unmounted) For FCCT
BH # ALFCG2U MFR # FCG-2U
Key Features
- RGB G Bandpass: 490-580nm
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader CMOS-Optimized RGB-B Bandpass Filter (2" Round, Unmounted) For FCCT
BH # ALFCB2U MFR # FCB-2U
Key Features
- RGB B Bandpass: 400-510nm
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader Canon EOS Wide T-Ring System with 2" Clear Filter
BH # ALDSLRTCLR MFR # DSLRT-CLR
Key Features
- Canon EOS Bayonet Mount
- For Filtered Astrophotography Images
- 2" Mounted/50.4mm Unmounted Filters
- Eliminates Vignetting on Fast Systems
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader C2 Swan-Band CMOS Filter (15nm) - OIII Parallel (2" Eyepiece)
BH # ALFSWAN2 MFR # FSWAN-2
Key Features
- For Comet Gas Tail Observation
- Passes C2 511 & 514nm Emission Lines
- Blocks O III Line for Higher Contrast
- Optimized for CMOS, Suitable for CCD
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader S-II Narrowband Filter (31mm Round, Unmounted Filter)
BH # ALFCSIINRD31 MFR # FCSIIN-RD31
Key Features
- 6.5nm FWHM, Ideal from f/10 to f/3.5
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader 6.5nm Narrowband O-III CMOS Filter (31mm Round, Unmounted)
BH # ALFCOIIINR31 MFR # FCOIIIN-RD31
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader SLOAN/SDSS r' Filter (1.25" Eyepiece Filter)
BH # ALFSLN1R MFR # FSLN-1R
Key Features
- SLOAN-r' Bandpass Filter
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader SLOAN/SDSS i' Filter (1.25" Eyepiece Filter)
BH # ALFSLN1I MFR # FSLN-1I
Key Features
- SLOAN-i' Bandpass Filter
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader SLOAN/SDSS g' Filter (1.25" Eyepiece Filter)
BH # ALFSLN1G MFR # FSLN-1G
Key Features
- SLOAN-g' Bandpass Filter
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader H-alpha Narrowband Filter (31mm Round)
BH # ALFCHALNRD31 MFR # FCHALN-RD31
Key Features
- 6.5nm FWHM, Ideal from f/10 to f/3.5
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader 6.5nm f/2.0 S-II Highspeed CMOS Filter (1.25" Eyepiece Filter)
BH # ALFCSIIHS1 MFR # FCSIIHS-1
Key Features
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader UBVRI Bessel V Filter (31mm Round, Unmounted)
BH # ALFBESRD31V MFR # FBES-RD31V
Key Features
- Photometric Filter: V Bandpass
- Suitable from f/15 to f/1.8
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits