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Astro Imaging Filters

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Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (1.25")

Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (1.25")

BH # ALFCSHSU1 MFR # FCSETHSU-1
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/1.8 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$94600
In Stock
No Store Display
Free Expedited Shipping
Alpine Astronomical Baader SLOAN/SDSS ugriz' Filterset (1.25" Eyepiece Filter)

Alpine Astronomical Baader SLOAN/SDSS ugriz' Filterset (1.25" Eyepiece Filter)

BH # ALFSLNS1 MFR # FSLNSET-1
Key Features
  • Includes u, g, r, i, z-s, and y' Filters
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$96000
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 6.5nm Narrowband Filter Set (50.4mm)

BH # ALFCSNRD50 MFR # FCSETN-RD50
1 Review
Key Features
  • 3 Filter Set: H-alpha, O-III, and S-II
  • For f/10 to f/3.5 Optical Systems
  • CMOS-Optimized / Suitable for CCD
  • 6.5nm FWHM
$96300
In Stock
No Store Display
Free Expedited Shipping

Alpine Astronomical Baader 3.5/4nm Ultra-Narrowband Filter Set CMOS-Optimized (31mm)

BH # ALFCSNURD31 MFR # FCSETNU-RD31
Key Features
  • 3 Filter Set: H-alpha, O-III, and S-II
  • For f/10 to f/3.5 Optical Systems
  • CMOS-Optimized / Suitable for CCD
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$98300
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-High-Speed Filter Set CMOS-Optimized (31mm, Unmounted)

BH # ALFCSMSURD31 MFR # FCSETMSU-RD31
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/2.3 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$98500
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (31mm, Unmounted)

BH # ALFCSHSURD31 MFR # FCSETHSU-RD31
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/1.8 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,00000
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 6.5nm Narrowband Filter Set (50 x 50mm)

BH # ALFCSNSQ50 MFR # FCSETN-SQ50
Key Features
  • 3 Filter Set: H-alpha, O-III, and S-II
  • For f/10 to f/3.5 Optical Systems
  • CMOS-Optimized / Suitable for CCD
  • 6.5nm FWHM
$1,02800
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader UBVRI Bessel Filterset (36mm Round, Unmounted)

BH # ALFBESSRD36 MFR # FBESSET-RD36
Key Features
  • Includes UBVRI Photometric Filters
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$1,03500
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 6.5nm f/2.0 Highspeed CMOS Filter Set (50x50mm Square, Unmounted)

BH # ALFCSHSSQ50 MFR # FCSETHS-SQ50
See All Details
Available in other Styles, Configurations & Kits
$1,06300
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-High-Speed Filter Set CMOS-Optimized (36mm, Unmounted)

BH # ALFCSMSURD36 MFR # FCSETMSU-RD36
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/2.3 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,17500
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm Ultra-Narrowband Filter Set CMOS-Optimized (36mm)

BH # ALFCSNURD36 MFR # FCSETNU-RD36
Key Features
  • 3 Filter Set: H-alpha, O-III, and S-II
  • For f/10 to f/3.5 Optical Systems
  • CMOS-Optimized / Suitable for CCD
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,17500
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (36mm, Unmounted)

BH # ALFCSHSURD36 MFR # FCSETHSU-RD36
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/1.8 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,19600
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader SLOAN/SDSS ugriz' Filterset (36mm Round, Unmounted)

BH # ALFSLNSRD36 MFR # FSLNSET-RD36
Key Features
  • Includes u, g, r, i, z-s, and y' Filters
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$1,27600
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader UBVRI Bessel Filterset (2" Eyepiece Filter)

BH # ALFBESSET2 MFR # FBESSET-2
Key Features
  • Includes UBVRI Photometric Filters
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$1,27600
In Stock
No Store Display
Free Expedited Shipping

Alpine Astronomical Baader 6.5nm Narrowband Filter Set (65 x 65mm)

BH # ALFCSNSQ65 MFR # FCSETN-SQ65
Key Features
  • 3 Filter Set: H-alpha, O-III, and S-II
  • For f/10 to f/3.5 Optical Systems
  • CMOS-Optimized / Suitable for CCD
  • 6.5nm FWHM
$1,28700
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 6.5nm f/2.0 Highspeed CMOS Filter Set (65x65mm Square, Unmounted)

BH # ALFCSHSSQ65 MFR # FCSETHS-SQ65
See All Details
Available in other Styles, Configurations & Kits
$1,31000
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm Ultra-Narrowband Filter Set CMOS-Optimized (2")

BH # ALFCSNU2 MFR # FCSETNU-2
Key Features
  • 3 Filter Set: H-alpha, O-III, and S-II
  • For f/10 to f/3.5 Optical Systems
  • CMOS-Optimized / Suitable for CCD
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,33200
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-High-Speed Filter Set CMOS-Optimized (2")

BH # ALFCSMSU2 MFR # FCSETMSU-2
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/2.3 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,34300
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader UBVRI Bessel Filterset (50.4mm Round, Unmounted)

BH # ALFBESSRD50 MFR # FBESSET-RD50
Key Features
  • Includes UBVRI Photometric Filters
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$1,40800
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm Ultra-Narrowband Filter Set CMOS-Optimized (50.4mm)

BH # ALFCSNURD50 MFR # FCSETNU-RD50
Key Features
  • 3 Filter Set: H-alpha, O-III, and S-II
  • For f/10 to f/3.5 Optical Systems
  • CMOS-Optimized / Suitable for CCD
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,43300
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-High-Speed Filter Set CMOS-Optimized (50.4mm, Unmounted)

BH # ALFCSMSURD50 MFR # FCSETMSU-RD50
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/2.3 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,44400
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader UBVRI Bessel Filterset (50 x 50mm Square, Unmounted)

BH # ALFBESSSQ50 MFR # FBESSET-SQ50
Key Features
  • Includes UBVRI Photometric Filters
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$1,48900
In Stock
No Store Display
Free Expedited Shipping

Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (50.4mm, Unmounted)

BH # ALFCSHSURD50 MFR # FCSETHSU-RD50
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/1.8 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,51100
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-High-Speed Filter Set CMOS-Optimized (50mm Square, Unmounted)

BH # ALFCSMSUSQ50 MFR # FCSETMSU-SQ50
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/2.3 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,52300
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm Ultra-Narrowband Filter Set CMOS-Optimized (50mm)

BH # ALFCSNUSQ50 MFR # FCSETNU-SQ50
Key Features
  • 3 Filter Set: H-alpha, O-III, and S-II
  • For f/10 to f/3.5 Optical Systems
  • CMOS-Optimized / Suitable for CCD
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,53400
In Stock
No Store Display
Free Expedited Shipping

Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (50mm Square, Unmounted)

BH # ALFCSHSUSQ50 MFR # FCSETHSU-SQ50
Key Features
  • 3-Filter Set: H-alpha, O-III, and S-II
  • For f/3.4 to f/1.8 Optical Systems
  • CMOS-Optimized and Suitable for CCDs
  • Reflex-Blocker / Life-Coat
Available in other Styles, Configurations & Kits
$1,61000
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader SLOAN/SDSS ugriz' Filterset (2" Eyepiece Filter)

BH # ALFSLNS2 MFR # FSLNSET-2
Key Features
  • Includes u, g, r, i, z-s, and y' Filters
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$1,66600
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader UBVRI Bessel Filterset (65 x 65mm Square, Unmounted)

BH # ALFBESSSQ65 MFR # FBESSET-SQ65
Key Features
  • Includes UBVRI Photometric Filters
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
Available in other Styles, Configurations & Kits
$1,75600
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping
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