Holiday Headstart

Filter by:
Sort by:
View:
SVBONY SV220 H-Alpha/O-III 7nm Dual-Band Narrow Filter (2")

SVBONY SV220 H-Alpha/O-III 7nm Dual-Band Narrow Filter (2")

BH # SVW9172B MFR # W9172B
Key Features
  • Better Contrast for Nebulae Photography
  • Reduces Effects of Light Pollution
  • H-Alpha & O-III 7nm Bands
  • M48 x 0.75 Male Thread
$13623
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery
Extended Returns: thru Feb 01, 2027
Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (1.25" Eyepiece Filter)

Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (1.25" Eyepiece Filter)

BH # ALFCUVIR1 MFR # FCUVIR-1
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
$8700
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027
Top Seller

ZWO UV IR Cut Filter (1.25")

BH # ZWOIRCUT125 MFR # ZWO-IRCUT1.25
Key Features
  • Enables Sharper Photos
  • Protects H-Alpha Filter from IR Damage
  • M48 x 0.75 Male Thread
  • Protective Plastic Case
See All Details
$2900
In Stock
No Store Display
Free Delivery: Fri, Nov 20
Extended Returns: thru Feb 01, 2027
Top Seller

ZWO UV IR Cut Filter (2")

BH # ZWOIRCUT2 MFR # ZWO-IRCUT2
Key Features
  • Enables Sharper Photos
  • Protects H-Alpha Filter from IR Damage
  • M48 x 0.75 Male Thread
  • Protective Plastic Case
See All Details
$59.00
$4900
Holiday Savings $10.00
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

Vaonis Dual Band Filter for Vespera

BH # VAAC022 MFR # AC022
Key Features
  • Designed for Nebula Photography
  • Improves Contrast
  • Refines Stars and Details
See All Details
$37899
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

Alpine Astronomical Baader UBVRI Bessel V Filter (1.25" Eyepiece Filter)

BH # ALFBES1V MFR # FBES-1V
Key Features
  • Photometric Filter: V Bandpass
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$18300
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

Alpine Astronomical Baader UBVRI Bessel B Filter (1.25" Eyepiece Filter)

BH # ALFBES1B MFR # FBES-1B
Key Features
  • Photometric Filter: B Bandpass
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$18300
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

Celestron Nebula Filter for Celestron Origin

BH # CENFFCO MFR # 93669
Key Features
  • Blocks Light Pollution, Darkens Sky
  • Drops into Origin Filter Drawer
  • Schott Glass with Antireflective Coating
  • 100% Optically Flat
$21900
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

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

BH # ALFBES2V MFR # FBES-2V
Key Features
  • Photometric Filter: V Bandpass
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$25800
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery
Extended Returns: thru Feb 01, 2027

Vaonis Vespera Nebula & Light Pollution Filters Kit

BH # VAAC022K
Key Features
  • Dual Band Filter for Seeing Nebulae
  • Passes Ha & O III Wavelengths
  • Light Pollution Filter for City & Suburb
  • Blocks City Light, Passes Starlight
$59598
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

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

BH # ALFCLRGB2 MFR # FCLRGB-2
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
$63800
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

ZWO IR 850nm Pass Filter (1.25")

BH # ZWO850IR125 MFR # ZWO-850IR1.25
Key Features
  • Better Images on Low Visibility Nights
  • Blocks Light Affected by Turbulence
  • Passes IR Light Above 850nm
See All Details
$2900
In Stock
No Store Display
Free Delivery: Fri, Nov 20
Extended Returns: thru Feb 01, 2027

Alpine Astronomical Baader C2 Swan-Band CMOS Filter (15nm) - OIII Parallel (1.25" Eyepiece)

BH # ALFSWAN1 MFR # FSWAN-1
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
$9300
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

Alpine Astronomical Baader Clear Focusing Filter (2" Eyepiece Filter)

BH # ALBFC2 MFR # FC-2
Key Features
  • Full Wavelength Throughput
  • Allows for Sharp Focus Before Imaging
  • 2" Eyepiece Filter Frame
  • Anti-Reflection Fully Coated
$10000
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery
Extended Returns: thru Feb 01, 2027

Alpine Astronomical 9nm O-III Super-G CMOS Filter (1.25")

BH # ALFOIIISG1 MFR # FOIIISG-1
Key Features
  • 9nm FWHM, Max Transmission 97%
  • For Planetary Nebulae/Supernova Remnants
  • Serves as RGB Replacement Filter
  • CMOS-Optimized Coatings
$10800
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery
Extended Returns: thru Feb 01, 2027

Alpine Astronomical Baader Clear Focusing Filter (50.4mm Round, Unmounted)

BH # ALFCRD50 MFR # FC-RD50
Key Features
  • Full Wavelength Throughput
  • Allows for Sharp Focus Before Imaging
  • Unmounted for Versatile Use
  • Anti-Reflection Fully Coated
$11700
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Delivery
Extended Returns: thru Feb 01, 2027

Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (2" Eyepiece Filter)

BH # ALFCUVIR2 MFR # FCUVIR-2
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
$14300
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

ZWO Duo-Band Filter (2")

BH # ZWODB2 MFR # ZWO-DB2
Key Features
  • Passes Ha (656nm) & O III (500nm) Light
  • Reduces Moonlight & Light Pollution
  • Better Contrast for 1-Shot Color Cameras
  • Double-Sided Optical Coating
$16900
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

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
$18200
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

Vaonis Light Pollution Filter for Vespera Exploration Station

BH # VAAC023 MFR # AC023
Key Features
  • Blocks Light Pollution Wavelengths
  • Allows Stargazing in Cities & Suburbs
See All Details
$21699
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

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

BH # ALFBES2B MFR # FBES-2B
Key Features
  • Photometric Filter: B Bandpass
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$25800
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

Alpine Astronomical Baader Calcium Gen-II Unstacked Ca-K Solar Imaging Filter with LPFC (1.25")

BH # ALCAKII MFR # CAKII
Key Features
  • For Solar Imaging in Calcium K-Line
  • Shows Super-Granulation & Ellerman Bombs
  • 5nm-Wide Bandpass, Centered at 395nm
  • Reflex-Blocker Hard Coated
$26487
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

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

BH # ALFBESRD50V MFR # FBES-RD50V
Key Features
  • Photometric Filter: V Bandpass
  • Suitable from f/15 to f/1.8
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$28400
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery
Extended Returns: thru Feb 01, 2027

ZWO 7nm Narrowband Ha Filter (2")

BH # ZWHA7NMD2 MFR # HA7NMD2
Key Features
  • High-Contrast Emission Nebulae Photos
  • Reduces Transmission of Artificial Light
  • 7nm Bandpass at 656nm Wavelength
  • M48 x 0.75 Male Thread
See All Details
$29900
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027
$30200
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

Alpine Astronomical Baader 6.5nm f/2.0 S-II Highspeed CMOS Filter (2" Eyepiece)

BH # ALFCSIIHS2 MFR # FCSIIHS-2
Key Features
  • Optimized for CMOS, Suitable for CCD
  • Reflex-Blocker Hard Coated
  • Life-Coat Sealed Coating Edges
See All Details
$32000
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

Celestron Narrowband H-alpha / H-beta / O III Imaging Filter for 8" RASA OTA

BH # CEHHOIIIR8 MFR # 93619
Key Features
  • Improves Imaging of Wispy Nebulae
  • Transmits Just Three Wavelengths
  • Blocks Light Pollution and Sky Glow
  • Schott Glass with Optically Flat Surface
$32900
In Stock
No Store Display
Free Delivery: Wed, Nov 18
Extended Returns: thru Feb 01, 2027

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

BH # ALFCRGB1 MFR # FCRGB-1
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
$33300
Special Order
Expected availability: 3-5 Weeks
No Store Display
Free Delivery
Extended Returns: thru Feb 01, 2027
Whatever You Need, We've Got It