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Alpine Astronomical Baader S-II Narrowband Filter (65x65mm Square, Unmounted Filter)

Alpine Astronomical Baader S-II Narrowband Filter (65x65mm Square, Unmounted Filter)

BH # ALFCSIINSQ65 MFR # FCSIIN-SQ65
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
$46800
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping
Alpine Astronomical Baader 4nm Ultra-Narrowband O-III CMOS Filter (2" Eyepiece Filter)
$46800
In Stock
No Store Display
Free Expedited Shipping

Alpine Astronomical Baader Canon EOS Wide T-Ring System with Deep-Sky H-alpha Filter

BH # ALDSLRTHA MFR # DSLRT-HA
Key Features
  • Canon EOS Bayonet Mount
  • For Filtered Astrophotography Images
  • 2" Mounted/50.4mm Unmounted Filters
  • Eliminates Vignetting on Fast Systems
$47000
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping
$47000
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 (2" Eyepiece)

BH # ALFCSIMSU2 MFR # FCSIIMSU-2
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$47000
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

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

BH # ALFCSIHSU2 MFR # FCSIIHSU-2
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$47500
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 6.5nm f/2.0 S-II Highspeed CMOS Filter (65 x 65mm Square, Unmounted)

BH # ALFCSIIHSS65 MFR # FCSIIHS-SQ65
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$47500
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping
$47900
In Stock
No Store Display
Free Expedited Shipping

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

BH # ALFCOIHSSQ65 MFR # FCOIIIHS-SQ65
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$47900
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader H-alpha Narrowband Filter (65mm Square)

BH # ALFCHALNSQ65 MFR # FCHALN-SQ65
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
$48100
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 6.5nm f/2.0 H-Alpha Highspeed CMOS Filter (65 x 65mm Square, Unmounted)

BH # ALFCHALHSS65 MFR # FCHALHS-SQ65
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$48700
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

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

BH # ALFCHAMSU2 MFR # FCHALMSU-2
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$49600
In Stock
No Store Display
Free Expedited Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-Highspeed O-III CMOS Filter (50.4mm, Unmounted)

BH # ALFCOMSURD50 MFR # FCOIIIMSU-RD50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$49900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

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

BH # ALFCLRGBRD36 MFR # FCLRGB-RD36
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
$50100
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 4nm f/2 Ultra-Highspeed O-III CMOS Filter (50.4mm Round, Unmounted)

BH # ALFCOIHSUR50 MFR # FCOIIIHSU-RD50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$50100
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping

Alpine Astronomical Baader CMOS-Optimized RGB Bandpass Filterset (2" Eyepiece Filter)

BH # ALFCRGB2 MFR # FCRGB-2
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
$50300
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Standard Shipping
$50300
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 (50.4mm, Unmounted)

BH # ALFCSIMSUR50 MFR # FCSIIMSU-RD50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$50300
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping
$50900
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 (50mm Square, Unmounted)

BH # ALFCSIMSUS50 MFR # FCSIIMSU-SQ50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$50900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-Highspeed O-III CMOS Filter (50mm Square, Unmounted)

BH # ALFCOMSUSQ50 MFR # FCOIIIMSU-SQ50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$51000
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader 6.5nm Narrowband Filter Set (1.25")

BH # ALFCSN1 MFR # FCSETN-1
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
$51200
In Stock
No Store Display
Free Expedited Shipping

Alpine Astronomical Baader 4nm f/2 Ultra-Highspeed S-II CMOS Filter (50 x 50mm Square, Unmounted)

BH # ALFCSIHSUS50 MFR # FCSIIHSU-SQ50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$51500
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 (50.4mm Round, Unmounted)

BH # ALFCSIHSUR50 MFR # FCSIIHSU-RD50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$51500
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 (50 x 50mm Square, Unmounted)

BH # ALFCOIHSUS50 MFR # FCOIIIHSU-SQ50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$51500
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping
$51800
In Stock
No Store Display
Free Expedited Shipping
$52000
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping
$52600
Special Order
Expected availability: 7-14 Business Days
No Store Display
Free Standard Shipping
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