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Astro Imaging Filters

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Alpine Astronomical Baader UHC-L Ultra-L-Booster Nebula Filter (31mm, Unmounted)

Alpine Astronomical Baader UHC-L Ultra-L-Booster Nebula Filter (31mm, Unmounted)

BH # ALFUHCLRD31 MFR # FUHCL-RD31
Key Features
  • Blocks City Light Pollution
  • Increases Contrast of Nebulae & Comets
  • CMOS-Optimized
  • Ideal for Astrophotography & Observation
Available in other Styles, Configurations & Kits
$13800
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping
iOptron SII Narrowband Filter (1.25")

iOptron SII Narrowband Filter (1.25")

BH # IO3383SII MFR # 3383-SII
Key Features
  • For Nebula Astrophotography and Imaging
  • Passes 672nm Wavelength
  • Blocks Artificial Light & Sky Glow
  • Improves Contrast & Reveals Details
Available in other Styles, Configurations & Kits
$14900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

iOptron O-III Narrowband Filter (1.25")

BH # IO3383OIII MFR # 3383-OIII
Key Features
  • For Nebula Astrophotography and Imaging
  • Passes 500.7 & 495.9nm Wavelengths
  • Blocks Artificial Light & Skyglow
  • Improves Contrast & Reveals Details
Available in other Styles, Configurations & Kits
$14900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

iOptron H-Alpha Narrowband Filter (1.25")

BH # IO3383HA MFR # 3383-HA
Key Features
  • For Nebula Astrophotography and Imaging
  • 7nm Bandwidth Centered on 656nm
  • Blocks Artificial Light & Skyglow
  • Improves Contrast & Reveals Details
Available in other Styles, Configurations & Kits
$14900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader CMOS-Optimized RGB-R Bandpass Filter (36mm Round, Unmounted)

BH # ALFCRRD36 MFR # FCR-RD36
Key Features
  • RGB R Bandpass: 595-690nm
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$14900
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader CMOS-Optimized RGB-G Bandpass Filter (36mm Round, Unmounted)

BH # ALFCGRD36 MFR # FCG-RD36
Key Features
  • RGB G Bandpass: 490-580nm
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$14900
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$14900
Special Order
No Store Display
Free Standard Shipping

ZWO 7nm Narrowband S-II Filter (1.25")

BH # ZWOSII7NM125 MFR # ZWO-SII7NM1.25
Key Features
  • High-Contrast Emission Nebulae Photos
  • Reduces Transmission of Artificial Light
  • 7nm Bandpass at 672nm Wavelength
  • M28.5x0.6 Male Thread
See All Details
Available in other Styles, Configurations & Kits
$14900
In Stock
No Store Display
Free 2-Day Shipping

ZWO 11.25" OIII Filter 7nm

BH # ZWOOII7NM125 MFR # ZWO-OIII7NM1.25
See All Details
$14900
Special Order
Expected availability: 4-6 Weeks
No Store Display
Free Standard Shipping

ZWO 1.25" HA Filter 7Nm

BH # ZWOHA7NM125 MFR # ZWO-HA7NM1.25
See All Details
$14900
Special Order
Expected availability: 4-6 Weeks
No Store Display
Free Standard Shipping

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
$15500
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$16500
In Stock
No Store Display
Free 2-Day Shipping

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
$16700
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$17600
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

ZWO LRGB Imaging Filter Set (1.25")

BH # ZWOLRGB125NW MFR # ZWO-LRGB1.25NEW
1 Review
Key Features
  • Optimized for ZWO ASI1600MM Camera
  • For Monochrome Astronomy Cameras
  • M28.5 x 0.6 Mounting Thread
See All Details
Available in other Styles, Configurations & Kits
$17900
In Stock
No Store Display
Free 2-Day Shipping

Alpine Astronomical Baader 6.5nm Narrowband O-III CMOS Filter (1.25" Eyepiece Filter)

BH # ALFCOIIIN1 MFR # FCOIIIN-1
See All Details
Available in other Styles, Configurations & Kits
$17900
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$18000
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$18200
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$18200
In Stock
No Store Display
Free 2-Day Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$18300
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$18300
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$18300
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

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
$18400
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

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
$18800
In Stock
No Store Display
Free 2-Day Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$18800
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 6.5nm Narrowband O-III CMOS Filter (31mm Round, Unmounted)

BH # ALFCOIIINR31 MFR # FCOIIIN-RD31
See All Details
Available in other Styles, Configurations & Kits
$18800
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader H-alpha Narrowband Filter (1.25")

BH # ALFCHALN1 MFR # FCHALN-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 Edges
See All Details
Available in other Styles, Configurations & Kits
$18800
In Stock
No Store Display
Free 2-Day Shipping

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
See All Details
Available in other Styles, Configurations & Kits
$19200
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping
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