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Alpine Astronomical Baader H-beta Narrowband Filter (2" Eyepiece Filter)

Alpine Astronomical Baader H-beta Narrowband Filter (2" Eyepiece Filter)

BH # ALFCHBN2 MFR # FCHBN-2
Key Features
  • 5.5nm 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
$38800
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping
Alpine Astronomical Baader SLOAN/SDSS u' Filter (50.4mm Round, Unmounted)

Alpine Astronomical Baader SLOAN/SDSS u' Filter (50.4mm Round, Unmounted)

BH # ALFSLNRD50U MFR # FSLN-RD50U
Key Features
  • SLOAN-u' Bandpass Filter
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$39100
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader CMOS-Optimized LRGB Bandpass Filterset (1.25" Eyepiece Filter)

BH # ALFCLRGB1 MFR # FCLRGB-1
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
See All Details
$39100
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 6.5nm f/2.0 H-Alpha Highspeed CMOS Filter (50 x 50mm Square, Unmounted)

BH # ALFCHALHSS50 MFR # FCHALHS-SQ50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$39100
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader CMOS-Optimized LRGB Bandpass Filterset (31mm Round, Unmounted)

BH # ALFCLRGBRD31 MFR # FCLRGB-RD31
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
See All Details
$39700
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

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

BH # ALFCRGBRD36 MFR # FCRGB-RD36
Key Features
  • Includes R, G, and B Bandpass Filters
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$40300
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-Highspeed O-III CMOS Filter (36mm, Unmounted)

BH # ALFCOMSURD36 MFR # FCOIIIMSU-RD36
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$40900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 4nm f/2 Ultra-Highspeed O-III CMOS Filter (36mm Round, Unmounted)

BH # ALFCOIHSUR36 MFR # FCOIIIHSU-RD36
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$41200
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-Highspeed S-II CMOS Filter (36mm, Unmounted)

BH # ALFCSIMSUR36 MFR # FCSIIMSU-RD36
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$41400
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader H-beta Narrowband Filter (50.4mm Round, Unmounted)

BH # ALFCHBNRD50 MFR # FCHBN-RD50
Key Features
  • 5.5nm 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
$41400
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping
$41400
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping
$41900
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 4nm f/2 Ultra-Highspeed S-II CMOS Filter (36mm Round, Unmounted)

BH # ALFCSIHSUR36 MFR # FCSIIHSU-RD36
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$41900
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader SLOAN/SDSS r' Filter (50.4mm Round, Unmounted)

BH # ALFSLNRD50R MFR # FSLN-RD50R
Key Features
  • SLOAN-r' Bandpass Filter
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$42000
In Stock
No Store Display
Free Expedited Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-Highspeed H-Alpha CMOS Filter (36mm, Unmounted)

BH # ALFCHAMSUR36 MFR # FCHALMSU-RD36
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$42900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

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

BH # ALFBESSQ65U MFR # FBES-SQ65U
Key Features
  • Photometric Filter: U Bandpass
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$43600
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

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

BH # ALFBESSQ65I MFR # FBES-SQ65I
Key Features
  • Photometric Filter: I Bandpass
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$43600
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader SLOAN/SDSS z-s' Filter (50 x 50mm Square, Unmounted)

BH # ALFSLNSQ50Z MFR # FSLN-SQ50Z
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
$44000
In Stock
No Store Display
Free Expedited Shipping

Alpine Astronomical Baader SLOAN/SDSS y' Filter (50 x 50mm Square, Unmounted)

BH # ALFSLNSQ50Y MFR # FSLN-SQ50Y
Key Features
  • SLOAN-y' Bandpass Filter
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$44000
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping
$44500
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 4nm f/2 Ultra-Highspeed O-III CMOS Filter (47.4mm Round, Unmounted for FCCT 2" Slider)

BH # ALFOIIIHSU2U MFR # FCOIIIHSU-2U
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$44600
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader UHC-L Ultra-L-Booster Nebula Filter (65 x 65mm, Unmounted)

BH # ALFUHCLSQ65 MFR # FUHCL-SQ65
Key Features
  • Blocks City Light Pollution
  • Increases Contrast of Nebulae & Comets
  • CMOS-Optimized
  • Ideal for Astrophotography & Observation
$44700
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader H-beta Narrowband Filter (50 x 50mm Square, Unmounted)

BH # ALFCHBNSQ50 MFR # FCHBN-SQ50
Key Features
  • 5.5nm 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
$44700
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5nm f/2 Ultra-Highspeed H-Alpha CMOS Filter (36mm Round, Unmounted)

BH # ALFCHAHSUR36 MFR # FCHALHSU-RD36
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$44700
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 4nm f/2 Ultra-Highspeed S-II CMOS Filter (47.4mm Round, Unmounted for FCCT 2" Slider)

BH # ALFCSIIHSU2U MFR # FCSIIHSU-2U
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$45600
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader SLOAN/SDSS u' Filter (50 x 50mm Square, Unmounted)

BH # ALFSLNSQ50U MFR # FSLN-SQ50U
Key Features
  • SLOAN-u' Bandpass Filter
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$45600
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-Highspeed O-III CMOS Filter (2" Eyepiece)

BH # ALFCOMSU2 MFR # FCOIIIMSU-2
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$46200
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 4nm f/2 Ultra-Highspeed O-III CMOS Filter (2" Eyepiece Filter)

BH # ALFCOIHSU2 MFR # FCOIIIHSU-2
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$46400
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping
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