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SVBONY SV220 H-Alpha/O-III 7nm Dual-Band Narrow Filter (2")
BH # SVW9172B MFR # W9172B
Key Features
- Better Contrast for Nebulae Photography
- Reduces Effects of Light Pollution
- H-Alpha & O-III 7nm Bands
- M48 x 0.75 Male Thread
Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (1.25" Eyepiece Filter)
BH # ALFCUVIR1 MFR # FCUVIR-1
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
Top Seller
ZWO UV IR Cut Filter (1.25")
BH # ZWOIRCUT125 MFR # ZWO-IRCUT1.25
Key Features
- Enables Sharper Photos
- Protects H-Alpha Filter from IR Damage
- M48 x 0.75 Male Thread
- Protective Plastic Case
Available in other Styles, Configurations & Kits
Top Seller
ZWO UV IR Cut Filter (2")
BH # ZWOIRCUT2 MFR # ZWO-IRCUT2
Key Features
- Enables Sharper Photos
- Protects H-Alpha Filter from IR Damage
- M48 x 0.75 Male Thread
- Protective Plastic Case
Available in other Styles, Configurations & Kits
Vaonis Dual Band Filter for Vespera
BH # VAAC022 MFR # AC022
Key Features
- Designed for Nebula Photography
- Improves Contrast
- Refines Stars and Details
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 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
Celestron Nebula Filter for Celestron Origin
BH # CENFFCO MFR # 93669
Key Features
- Blocks Light Pollution, Darkens Sky
- Drops into Origin Filter Drawer
- Schott Glass with Antireflective Coating
- 100% Optically Flat
Alpine Astronomical Baader UBVRI Bessel V Filter (2" Eyepiece Filter)
BH # ALFBES2V MFR # FBES-2V
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
Vaonis Vespera Nebula & Light Pollution Filters Kit
BH # VAAC022K
Key Features
- Dual Band Filter for Seeing Nebulae
- Passes Ha & O III Wavelengths
- Light Pollution Filter for City & Suburb
- Blocks City Light, Passes Starlight
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader CMOS-Optimized LRGB Bandpass Filterset (2" Eyepiece Filter)
BH # ALFCLRGB2 MFR # FCLRGB-2
Key Features
- Includes UV/IR Cut and R/G/B Filters
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
ZWO IR 850nm Pass Filter (1.25")
BH # ZWO850IR125 MFR # ZWO-850IR1.25
Key Features
- Better Images on Low Visibility Nights
- Blocks Light Affected by Turbulence
- Passes IR Light Above 850nm
Alpine Astronomical Baader C2 Swan-Band CMOS Filter (15nm) - OIII Parallel (1.25" Eyepiece)
BH # ALFSWAN1 MFR # FSWAN-1
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 Clear Focusing Filter (2" Eyepiece Filter)
BH # ALBFC2 MFR # FC-2
Key Features
- Full Wavelength Throughput
- Allows for Sharp Focus Before Imaging
- 2" Eyepiece Filter Frame
- Anti-Reflection Fully Coated
Available in other Styles, Configurations & Kits
Alpine Astronomical 9nm O-III Super-G CMOS Filter (1.25")
BH # ALFOIIISG1 MFR # FOIIISG-1
Key Features
- 9nm FWHM, Max Transmission 97%
- For Planetary Nebulae/Supernova Remnants
- Serves as RGB Replacement Filter
- CMOS-Optimized Coatings
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader Clear Focusing Filter (50.4mm Round, Unmounted)
BH # ALFCRD50 MFR # FC-RD50
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 CMOS-Optimized UV/IR Bandpass L Filter (2" Eyepiece Filter)
BH # ALFCUVIR2 MFR # FCUVIR-2
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
ZWO Duo-Band Filter (2")
BH # ZWODB2 MFR # ZWO-DB2
Key Features
- Passes Ha (656nm) & O III (500nm) Light
- Reduces Moonlight & Light Pollution
- Better Contrast for 1-Shot Color Cameras
- Double-Sided Optical Coating
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
Vaonis Light Pollution Filter for Vespera Exploration Station
BH # VAAC023 MFR # AC023
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader UBVRI Bessel B Filter (2" Eyepiece Filter)
BH # ALFBES2B MFR # FBES-2B
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 Calcium Gen-II Unstacked Ca-K Solar Imaging Filter with LPFC (1.25")
BH # ALCAKII MFR # CAKII
Key Features
- For Solar Imaging in Calcium K-Line
- Shows Super-Granulation & Ellerman Bombs
- 5nm-Wide Bandpass, Centered at 395nm
- Reflex-Blocker Hard Coated
Alpine Astronomical Baader UBVRI Bessel V Filter (50.4mm Round, Unmounted)
BH # ALFBESRD50V MFR # FBES-RD50V
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
ZWO 7nm Narrowband Ha Filter (2")
BH # ZWHA7NMD2 MFR # HA7NMD2
Key Features
- High-Contrast Emission Nebulae Photos
- Reduces Transmission of Artificial Light
- 7nm Bandpass at 656nm Wavelength
- M48 x 0.75 Male Thread
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader 6.5nm Narrowband O-III CMOS Filter (2" Eyepiece Filter)
BH # ALFCOIIIN2 MFR # FCOIIIN-2
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader 6.5nm f/2.0 S-II Highspeed CMOS Filter (2" Eyepiece)
BH # ALFCSIIHS2 MFR # FCSIIHS-2
Key Features
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits
Celestron Narrowband H-alpha / H-beta / O III Imaging Filter for 8" RASA OTA
BH # CEHHOIIIR8 MFR # 93619
Key Features
- Improves Imaging of Wispy Nebulae
- Transmits Just Three Wavelengths
- Blocks Light Pollution and Sky Glow
- Schott Glass with Optically Flat Surface
Alpine Astronomical Baader CMOS-Optimized RGB Bandpass Filterset (1.25" Eyepiece Filter)
BH # ALFCRGB1 MFR # FCRGB-1
Key Features
- Includes R, G, and B Bandpass Filters
- Optimized for CMOS, Suitable for CCD
- Reflex-Blocker Hard Coated
- Life-Coat Sealed Coating Edges
Available in other Styles, Configurations & Kits



