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Alpine Astronomical Baader 6.5nm f/2.0 Highspeed CMOS Filter Set (1.25" Eyepiece Filter)
$54795
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery
Alpine Astronomical Baader SLOAN/SDSS r' Filter (65 x 65mm Square, Unmounted)

Alpine Astronomical Baader SLOAN/SDSS r' Filter (65 x 65mm Square, Unmounted)

BH # ALFSLNSQ65R MFR # FSLN-SQ65R
Key Features
  • SLOAN-r' Bandpass Filter
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$54800
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader SLOAN/SDSS i' Filter (65 x 65mm Square, Unmounted)

BH # ALFSLNSQ65I MFR # FSLN-SQ65I
Key Features
  • SLOAN-i' Bandpass Filter
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$54800
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader SLOAN/SDSS g' Filter (65 x 65mm Square, Unmounted)

BH # ALFSLNSQ65G MFR # FSLN-SQ65G
Key Features
  • SLOAN-g' Bandpass Filter
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$54800
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery

ZWO Narrowband HA, SII & OIII Filter Set (36mm)

BH # ZWONB7NMD36 MFR # ZWO-NB7NMD36
Key Features
  • High-Contrast Emission Nebulae Photos
  • Reduces Transmission of Artificial Light
  • 7nm Bandpass
See All Details
$54900
In Stock
No Store Display
Free Delivery: Fri, Oct 30
$55700
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

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

BH # ALFCHAHSU2 MFR # FCHALHSU-2
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$55900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader SLOAN/SDSS u' Filter (65 x 65mm Square, Unmounted)

BH # ALFSLNSQ65U MFR # FSLN-SQ65U
Key Features
  • SLOAN-u' Bandpass Filter
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$55900
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader H-beta Narrowband Filter (65 x 65mm Square, Unmounted)

BH # ALFCHBNSQ65 MFR # FCHBN-SQ65
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
$55900
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery

Celestron Light Pollution Imaging Filter for 11" RASA OTA

BH # CELPIFR MFR # 93617
Key Features
  • Designed Specifically for the 11" RASA
  • Selectively Filters Ambient Light
  • Dichroic Anti-Reflection Coatings
  • Maintains a Neutral Color Balance
$56999
In Stock
No Store Display
Free Delivery: Fri, Oct 30
$58200
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-Highspeed S-II CMOS Filter (65mm Square, Unmounted)

BH # ALFCSIMSUS65 MFR # FCSIIMSU-SQ65
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$58900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader 6.5nm Narrowband Filter Set (36mm)

BH # ALFCSNRD36 MFR # FCSETN-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
  • 6.5nm FWHM
$60400
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader CMOS-Optimized RGB Bandpass Filterset (50.4mm Round, Unmounted)

BH # ALFCRGBRD50 MFR # FCRGB-RD50
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
$60400
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery

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

BH # ALFCHAMSUS50 MFR # FCHALMSU-SQ50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$61500
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader 3.5nm f/2 Ultra-Highspeed H-Alpha CMOS Filter (50.4mm Round, Unmounted)

BH # ALFCHAHSUD50 MFR # FCHALHSU-RD50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$61500
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery
$63600
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader CMOS-Optimized RGB Bandpass Filterset (50 x 50mm Square, Unmounted)

BH # ALFCRGBSQ50 MFR # FCRGB-SQ50
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
$63800
Special Order
No Store Display
Free Delivery
$64700
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-Highspeed O-III CMOS Filter (65mm Square, Unmounted)

BH # ALFCOMSUSQ65 MFR # FCOIIIMSU-SQ65
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$66700
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader 4nm f/2 Ultra-Highspeed O-III CMOS Filter (65 x 65mm Square, Unmounted)

BH # ALFCOIHSUS65 MFR # FCOIIIHSU-SQ65
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$66900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader 4nm f/2 Ultra-Highspeed S-II CMOS Filter (65 x 65mm Square, Unmounted)

BH # ALFCSIHSUS65 MFR # FCSIIHSU-SQ65
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$67100
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery
$69200
Special Order
No Store Display
Free Delivery
$69400
Special Order
No Store Display
Free Delivery

Alpine Astronomical Baader 3.5nm f/2 Ultra-Highspeed H-Alpha CMOS Filter (50 x 50mm Square, Unmounted)

BH # ALFCHAHSUS50 MFR # FCHALHSU-SQ50
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$69400
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader CMOS-Optimized LRGB Bandpass Filterset (50.4mm Round, Unmounted)

BH # ALFCLRGBRD50 MFR # FCLRGB-RD50
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
$70500
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery

Alpine Astronomical Baader 3.5/4nm f/3 Ultra-Highspeed H-Alpha CMOS Filter (65mm Square, Unmounted)

BH # ALFCHAMSUS65 MFR # FCHALMSU-SQ65
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$77000
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery

Vaonis Vespera Solar, Light Pollution & Nebula Filters Kit

BH # VAAC021K
Key Features
  • Observe & Photograph the Sun
  • Overcome Urban/Suburban Light Pollution
  • Enhance Views of Nebulae
See All Details
$77498
In Stock
No Store Display
Free Delivery: Fri, Oct 30
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