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ZWO LRGB Imaging Filter Set (2")
BH # ZWOLRGB2 MFR # ZWO-LRGB2
Key Features
- Optimized for ZWO ASI1600MM Camera
- For Monochrome Astronomy Cameras
- M28.5 x 0.6 Mounting Thread
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
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
iOptron LRGB Imaging Filter Kit (1.25")
BH # IO3383RGB MFR # 3383-RGB
Key Features
- Luminance, Red, Green & Blue Filters
- O-III Overlap for Natural Color
- Blocks Sodium Light Pollution
Celestron Light Pollution Imaging Filter for 8" RASA OTA
BH # CELPIFRASA8 MFR # 93614
Key Features
- Designed Specifically for the 8" RASA
- Selectively Filters Ambient Light
- Dichroic Anti-Reflection Coatings
- Maintains a Neutral Color Balance
Available in other Styles, Configurations & Kits
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
Available in other Styles, Configurations & Kits
ZWO LRGB Imaging Filter Set (36mm)
BH # ZWLRGB36 MFR # LRGB36
Key Features
- Optimized for ZWO ASI1600MM Camera
- For Monochrome Astronomy Cameras
- Unmounted 36mm Round Filter
Available in other Styles, Configurations & Kits
ZWO LRGB Imaging Filter Set (1.25")
BH # ZWOLRGB125NW MFR # ZWO-LRGB1.25NEW
Key Features
- Optimized for ZWO ASI1600MM Camera
- For Monochrome Astronomy Cameras
- M28.5 x 0.6 Mounting Thread
Available in other Styles, Configurations & Kits
Alpine Astronomical 80mm Baader AstroSolar BDSF 3.8 White-Light Digital Solar Filter for Telescopes
BH # ALBDSF80 MFR # BDSF-80
Key Features
- For Digital Imaging with Nighttime OTAs
- For Detailed, High-Magnification Viewing
- Broad-Band Neutral-White Color
- Optical Density of 3.8
Available in other Styles, Configurations & Kits
$10200
Temporarily Out of Stock
Expected availability: 2-4 Weeks
Alpine Astronomical Baader Clear Focusing Filter (65x65mm Square, Unmounted)
BH # ALFCSQ65 MFR # FC-SQ65
Key Features
- Full Wavelength Throughput
- Allows for Sharp Focus Before Imaging
- Unmounted for Versatile Use
- Anti-Reflection Fully Coated
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader Clear Focusing Filter (50x50mm Square, Unmounted)
BH # ALFCSQ50 MFR # FC-SQ50
Key Features
- Full Wavelength Throughput
- Allows for Sharp Focus Before Imaging
- Unmounted for Versatile Use
- Anti-Reflection Fully Coated
Available in other Styles, Configurations & Kits
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
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader Clear Focusing Filter (36mm Round, Unmounted)
BH # ALFCRD36 MFR # FC-RD36
Key Features
- Full Wavelength Throughput
- Allows for Sharp Focus Before Imaging
- Unmounted for Versatile Use
- Anti-Reflection Fully Coated
Available in other Styles, Configurations & Kits
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
Available in other Styles, Configurations & Kits
Alpine Astronomical Baader Clear Focusing Filter (31mm Round, Unmounted)
BH # ALFCRD31 MFR # FC-RD31
Key Features
- Full Wavelength Throughput
- Allows for Sharp Focus Before Imaging
- Unmounted for Versatile Use
- Anti-Reflection Fully Coated
Available in other Styles, Configurations & Kits
iOptron SII Narrowband Filter (1.25")
BH # IO3383SII MFR # 3383-SII
Key Features
- For Nebula Astrophotography and Imaging
- Passes 672nm Wavelength
- Blocks Artificial Light & Sky Glow
- Improves Contrast & Reveals Details
Available in other Styles, Configurations & Kits
iOptron O-III Narrowband Filter (1.25")
BH # IO3383OIII MFR # 3383-OIII
Key Features
- For Nebula Astrophotography and Imaging
- Passes 500.7 & 495.9nm Wavelengths
- Blocks Artificial Light & Skyglow
- Improves Contrast & Reveals Details
Available in other Styles, Configurations & Kits
iOptron H-Alpha Narrowband Filter (1.25")
BH # IO3383HA MFR # 3383-HA
Key Features
- For Nebula Astrophotography and Imaging
- 7nm Bandwidth Centered on 656nm
- Blocks Artificial Light & Skyglow
- Improves Contrast & Reveals Details
Available in other Styles, Configurations & Kits
Alpine Astronomical H-Alpha 20nm Bandpass Filter (2")
BH # ALFHALW2 MFR # FHALW-2
Key Features
- Deep-Sky Astrophotography and Imaging
- NOT Safe for Solar Viewing or Imaging
- For High-Contrast Images of H-II Regions
- Optimized for Color CMOS & CCD Cameras
Available in other Styles, Configurations & Kits
Alpine Astronomical H-Alpha 20nm Bandpass Filter (1.25")
BH # ALFHALW1 MFR # FHALW-1
Key Features
- Deep-Sky Astrophotography and Imaging
- NOT Safe for Solar Viewing or Imaging
- For High-Contrast Images of H-II Regions
- Optimized for Color CMOS & CCD Cameras
Available in other Styles, Configurations & Kits
Starlight Xpress USB Filter Wheel with 5- Position 50.8mm Round/Unmounted Carousel (Female SCT/Male T-Mount)
BH # STUFWUM508S MFR # SXUFW-UM50.8S
Key Features
- Useful for Observation and Astro-Imaging
- Front Schmidt-Cassegrain Mounting
- Rear Male T2 Mount for Imaging Gear
- Runs via Computer USB Power
Available in other Styles, Configurations & Kits
Starlight Xpress USB Filter Wheel with 7-Position 36mm Round/Unmounted Filter Carousel (Female/Male T-Mounts)
BH # STSXUFWUM36T MFR # SXUFW-UM36T
Key Features
- Useful for Observation and Astro-Imaging
- Standard Male & Female T-2 Mounting
- Runs via Computer USB Power
- Sub-Miniature DC Gear Drives
Available in other Styles, Configurations & Kits
Starlight Xpress USB Filter Wheel with 5-Position 2" Eyepiece Filter Carousel (Female/Male T-Mounts)
BH # STSXUFW2T MFR # SXUFW-2T
Key Features
- Useful for Observation and Astro-Imaging
- Standard Male & Female T-2 Mounting
- Runs via Computer USB Power
- Sub-Miniature DC Gear Drives
Available in other Styles, Configurations & Kits
Starlight Xpress USB Filter Wheel with 7-Position 1.25" Eyepiece Filter Carousel (Female/Male T-Mounts)
BH # STSXUFW1T MFR # SXUFW-1T
Key Features
- Useful for Observation and Astro-Imaging
- Standard Male & Female T-2 Mounting
- Runs via Computer USB Power
- Sub-Miniature DC Gear Drives
Available in other Styles, Configurations & Kits
ZWO Electronic Filter Wheel (7 Positions, 50mm Square Unmounted Filters)
BH # ZWOEFW7X50 MFR # ZWO-EFW-7X50
Key Features
- Useful for Observation and Astro-Imaging
- Runs via Camera USB Power
- Can Be Rotated in Either Direction
- NPM Stepper Motor
OM SYSTEM M.Zuiko Digital ED 12mm f/2.0 Lens (Micro Four Thirds)
BH # OM122BOM MFR # V335240BW000
Key Features
- Micro Four Thirds System | f/2.0 to f/22
- 24mm (Full-Frame Equivalent)
- Exceptional Imaging in Low Light Levels
- Manual Clutch with Focus Presets
Pegasus Astro FlatMaster 150 Flat Field Panel
BH # PEFLTM150LWF MFR # PEG-FLTMSTR150L-WIFI
Key Features
- For Telescope Apertures up to 6"
- Manual, USB-B, or Wi-Fi Control
- Stepless Brightness Control
- ASCOM Alpaca, ASCOM 7 & INDI support
Available in other Styles, Configurations & Kits
Pegasus Astro FlatMaster Neo 120
BH # PEFLTM120NEO MFR # PEG-FLTMSTR120-NEO
Key Features
- Motorized Retractable Flat Field Panel
- For Telescope Apertures up to 4.7"
- Manual, USB-C & Wi-Fi Control
- Built-In Dew Heater


