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| Best Seller  | Alpine Astronomical Baader Neodymium Moon & Skyglow Filter (2") FMS-2 [Pre Order - allow extra time] Alpine Astronomical Baader Neodymium Moon & Skyglow Filter (2") Improves Color and Contrst, UV/IR Luminance Blocking Coating, Filters Streetlights and Moon Skyglow, Isolates Red, Green, and Blue Colors, Reveals... ... more
Alpine Astronomical Baader Neodymium Moon & Skyglow Filter (2") FMS-2 [Pre Order - allow extra time] Alpine Astronomical Baader Neodymium Moon & Skyglow Filter (2") Improves Color and Contrst, UV/IR Luminance Blocking Coating, Filters Streetlights and Moon Skyglow, Isolates Red, Green, and Blue Colors, Reveals... | FREE shipping go to store |
 | Alpine Astronomical Baader 0.6 Neutral Density Filter (2") FND0-2 Use the Alpine Astronomical Baader 0.6 Neutral Density Filter to reduce the amount of light coming into your eye during lunar observation and improve the view and contrast. The lens surfaces are fully multi-coated with Phantom Group seven-layer... ... more
Alpine Astronomical Baader 0.6 Neutral Density Filter (2") FND0-2 Use the Alpine Astronomical Baader 0.6 Neutral Density Filter to reduce the amount of light coming into your eye during lunar observation and improve the view and contrast. The lens surfaces are fully multi-coated with Phantom Group seven-layer... | FREE shipping go to store |
| Best Seller  | Free Express Shipping! Alpine Astronomical Baader Astrophotography H-alpha Conversion Filter for Canon EOS Digital Rebel Isolates Hydrogen-Alpha Wavelength, Converts DSLR to Dedicated Astro Camera, Replaces Factory Cover Glass, Maintains Correct... ... more
Free Express Shipping! Alpine Astronomical Baader Astrophotography H-alpha Conversion Filter for Canon EOS Digital Rebel Isolates Hydrogen-Alpha Wavelength, Converts DSLR to Dedicated Astro Camera, Replaces Factory Cover Glass, Maintains Correct... | FREE shipping go to store |
 | Alpine Astronomical Baader UFC Base/Filter Chamber UFC-BASE [Pre Order - allow extra time] Alpine Astronomical Baader UFC Base/Filter Chamber Part of the UFC Filter Changer System, Accepts an Array of Filter Sliders, Optional Adapters for a Variety of Uses ... more
Alpine Astronomical Baader UFC Base/Filter Chamber UFC-BASE [Pre Order - allow extra time] Alpine Astronomical Baader UFC Base/Filter Chamber Part of the UFC Filter Changer System, Accepts an Array of Filter Sliders, Optional Adapters for a Variety of Uses | FREE shipping go to store |
 | Alpine Astronomical Baader U-Venus Filter (2") FUV-2 *Save The Tax Instantly! Use B&H Payboo to get an ...FREE BONUS w/PURCHASE! Alpine Astronomical Baader U-Venus Filter (2") 320-380nm Bandpass, Designed for Imaging Venus, Dielectric Multi-Coated Schott Glass, Standard 2" Eyepiece Filter Housing, Recommended for 8" Aperture OTAs ... more
Alpine Astronomical Baader U-Venus Filter (2") FUV-2 FREE BONUS w/PURCHASE! Alpine Astronomical Baader U-Venus Filter (2") 320-380nm Bandpass, Designed for Imaging Venus, Dielectric Multi-Coated Schott Glass, Standard 2" Eyepiece Filter Housing, Recommended for 8" Aperture OTAs | FREE shipping go to store |
 | Alpine Astronomical Alpine Astronomical Baader Single Polarizing Filter (2") FPOL-2 PROMO Get $9 in FREE Stuff + Free Exp. Delivery!Free Express Shipping! Alpine Astronomical Alpine Astronomical Baader Single Polarizing Filter (2") Ideal for Lunar & Planetary Viewing, Enhances Overall Image Contrast, Standard 2" Eyepiece Filter Threads, Use Solar Viewing with Proper Filters ... more
Alpine Astronomical Alpine Astronomical Baader Single Polarizing Filter (2") FPOL-2 Free Express Shipping! Alpine Astronomical Alpine Astronomical Baader Single Polarizing Filter (2") Ideal for Lunar & Planetary Viewing, Enhances Overall Image Contrast, Standard 2" Eyepiece Filter Threads, Use Solar Viewing with Proper Filters | FREE shipping go to store |
 | Alpine Astronomical Baader UFC Filter Slider for 2" Eyepiece Filters UFC-2 [Pre Order - allow extra time] Alpine Astronomical Baader UFC Filter Slider for 2" Eyepiece Filters Part of the UFC Filter Changer System, For Use with Optional UFC Filter Base, Enables Fast Filter Changes, Secures Magnetically to Base ... more
Alpine Astronomical Baader UFC Filter Slider for 2" Eyepiece Filters UFC-2 [Pre Order - allow extra time] Alpine Astronomical Baader UFC Filter Slider for 2" Eyepiece Filters Part of the UFC Filter Changer System, For Use with Optional UFC Filter Base, Enables Fast Filter Changes, Secures Magnetically to Base | FREE shipping go to store |
 | Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (2") FCSETHSU-2 *Save The Tax Instantly! Use B&H Payboo to get an ...[Pre Order - allow extra time] Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (2") 3-Filter Set: H-alpha, O-III, and S-II, For f/3.4 to f/1.8 Optical Systems, CMOS-Optimized and Suitable for CCDs, Reflex-Blocker /... ... more
Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (2") FCSETHSU-2 [Pre Order - allow extra time] Alpine Astronomical Baader 3.5/4nm f/2 Ultra-High-Speed Filter Set CMOS-Optimized (2") 3-Filter Set: H-alpha, O-III, and S-II, For f/3.4 to f/1.8 Optical Systems, CMOS-Optimized and Suitable for CCDs, Reflex-Blocker /... | FREE shipping go to store |
 | Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (2" Eyepiece Filter) FCUVIR-2 This 2 Eyepiece Filter Baader CMOS-Optimized UV/IR Bandpass L Filter from Alpine Astronomical reflects harmful thermal radiation in the infrared spectral range and provides 98% transmission over the entire visible spectrum from 420-685nm. It also... ... more
Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (2" Eyepiece Filter) FCUVIR-2 This 2 Eyepiece Filter Baader CMOS-Optimized UV/IR Bandpass L Filter from Alpine Astronomical reflects harmful thermal radiation in the infrared spectral range and provides 98% transmission over the entire visible spectrum from 420-685nm. It also... | FREE shipping go to store |
 | Alpine Astronomical Baader CMOS-Optimized LRGB Bandpass Filterset (2" Eyepiece Filter) FCLRGB-2 *Save The Tax Instantly! Use B&H Payboo to get an ...This Baader CMOS‑Optimized LRGB Bandpass Filterset from Alpine Astronomical includes all three RGB filters plus the UV-IR Bandpass L filter. ... more
Alpine Astronomical Baader CMOS-Optimized LRGB Bandpass Filterset (2" Eyepiece Filter) FCLRGB-2 This Baader CMOS‑Optimized LRGB Bandpass Filterset from Alpine Astronomical includes all three RGB filters plus the UV-IR Bandpass L filter. | FREE shipping go to store |
 | Alpine Astronomical Baader Contrast Booster Filter (2" Eyepiece Filter) FCNBST-2 [Pre Order - allow extra time] Alpine Astronomical Baader Contrast Booster Filter (2" Eyepiece Filter) Eliminates Color Error of Refractors, Reduces Bluish Hue During Viewing, Over 95% Transmission, Phantom Coating ... more
Alpine Astronomical Baader Contrast Booster Filter (2" Eyepiece Filter) FCNBST-2 [Pre Order - allow extra time] Alpine Astronomical Baader Contrast Booster Filter (2" Eyepiece Filter) Eliminates Color Error of Refractors, Reduces Bluish Hue During Viewing, Over 95% Transmission, Phantom Coating | FREE shipping go to store |
 | Alpine Astronomical Baader 6.5nm Narrowband Filter Set (2") FCSETN-2 *Save The Tax Instantly! Use B&H Payboo to get an ...[Pre Order - allow extra time] Alpine Astronomical Baader 6.5nm Narrowband Filter Set (2") 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, Reflex-Blocker / Life-Coat,... ... more
Alpine Astronomical Baader 6.5nm Narrowband Filter Set (2") FCSETN-2 [Pre Order - allow extra time] Alpine Astronomical Baader 6.5nm Narrowband Filter Set (2") 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, Reflex-Blocker / Life-Coat,... | FREE shipping go to store |
 | *Save The Tax Instantly! Use B&H Payboo to get an ... [Pre Order - allow extra time] Alpine Astronomical Baader 6.5nm f/2.0 Highspeed CMOS Filter Set (50x50mm Square, Unmounted) NULL ... more
[Pre Order - allow extra time] Alpine Astronomical Baader 6.5nm f/2.0 Highspeed CMOS Filter Set (50x50mm Square, Unmounted) NULL | FREE shipping go to store |
 | Alpine Astronomical Baader H-beta Narrowband Filter (2" Eyepiece Filter) FCHBN-2 *Save The Tax Instantly! Use B&H Payboo to get an ...[Pre Order - allow extra time] Alpine Astronomical Baader H-beta Narrowband Filter (2" Eyepiece Filter) 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 ... more
Alpine Astronomical Baader H-beta Narrowband Filter (2" Eyepiece Filter) FCHBN-2 [Pre Order - allow extra time] Alpine Astronomical Baader H-beta Narrowband Filter (2" Eyepiece Filter) 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 | FREE shipping go to store |
 | *Save The Tax Instantly! Use B&H Payboo to get an ... [Pre Order - allow extra time] Alpine Astronomical Baader CMOS-Optimized RGB Bandpass Filterset (50 x 50mm Square, Unmounted) Includes R, G, and B Bandpass Filters, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed... ... more
[Pre Order - allow extra time] Alpine Astronomical Baader CMOS-Optimized RGB Bandpass Filterset (50 x 50mm Square, Unmounted) Includes R, G, and B Bandpass Filters, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed... | FREE shipping go to store |
 | Alpine Astronomical Baader 4nm Ultra-Narrowband S-II CMOS Filter (2" Eyepiece Filter) FCSIINU-2 *Save The Tax Instantly! Use B&H Payboo to get an ...[Pre Order - allow extra time] Alpine Astronomical Baader 4nm Ultra-Narrowband S-II CMOS Filter (2" Eyepiece Filter) NULL ... more
Alpine Astronomical Baader 4nm Ultra-Narrowband S-II CMOS Filter (2" Eyepiece Filter) FCSIINU-2 [Pre Order - allow extra time] Alpine Astronomical Baader 4nm Ultra-Narrowband S-II CMOS Filter (2" Eyepiece Filter) NULL | FREE shipping go to store |
 | Alpine Astronomical Baader H-alpha Narrowband Filter (36mm Round) FCHALN-RD36 This 36mm Round Baader H-beta Narrowband Filter from Alpine Astronomical is a 6.5nm FWHM filter recommended for optical systems from f/10 to f/3.5. It features a Reflex-Blocker hard coating which has been planeoptically polished and has Life-Coat... ... more
Alpine Astronomical Baader H-alpha Narrowband Filter (36mm Round) FCHALN-RD36 This 36mm Round Baader H-beta Narrowband Filter from Alpine Astronomical is a 6.5nm FWHM filter recommended for optical systems from f/10 to f/3.5. It features a Reflex-Blocker hard coating which has been planeoptically polished and has Life-Coat... | FREE shipping go to store |
 | Alpine Astronomical Baader SLOAN/SDSS u' Filter (2" Eyepiece Filter) FSLN-2U *Save The Tax Instantly! Use B&H Payboo to get an ...[Pre Order - allow extra time] Alpine Astronomical Baader SLOAN/SDSS u' Filter (2" Eyepiece Filter) SLOAN-u' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges ... more
Alpine Astronomical Baader SLOAN/SDSS u' Filter (2" Eyepiece Filter) FSLN-2U [Pre Order - allow extra time] Alpine Astronomical Baader SLOAN/SDSS u' Filter (2" Eyepiece Filter) SLOAN-u' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges | FREE shipping go to store |
 | [Pre Order - allow extra time] Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (36mm Round, Unmounted) UV/IR Cut: 420-685nm, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges ... more
[Pre Order - allow extra time] Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (36mm Round, Unmounted) UV/IR Cut: 420-685nm, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges | FREE shipping go to store |
 | Alpine Astronomical Baader SLOAN/SDSS g' Filter (50 x 50mm Square, Unmounted) FSLN-SQ50G *Save The Tax Instantly! Use B&H Payboo to get an ...[Pre Order - allow extra time] Alpine Astronomical Baader SLOAN/SDSS g' Filter (50 x 50mm Square, Unmounted) SLOAN-g' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges ... more
Alpine Astronomical Baader SLOAN/SDSS g' Filter (50 x 50mm Square, Unmounted) FSLN-SQ50G [Pre Order - allow extra time] Alpine Astronomical Baader SLOAN/SDSS g' Filter (50 x 50mm Square, Unmounted) SLOAN-g' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges | FREE shipping go to store |
 | Alpine Astronomical Baader SLOAN/SDSS i' Filter (50 x 50mm Square, Unmounted) FSLN-SQ50I *Save The Tax Instantly! Use B&H Payboo to get an ...[Pre Order - allow extra time] Alpine Astronomical Baader SLOAN/SDSS i' Filter (50 x 50mm Square, Unmounted) SLOAN-i' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges ... more
Alpine Astronomical Baader SLOAN/SDSS i' Filter (50 x 50mm Square, Unmounted) FSLN-SQ50I [Pre Order - allow extra time] Alpine Astronomical Baader SLOAN/SDSS i' Filter (50 x 50mm Square, Unmounted) SLOAN-i' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges | FREE shipping go to store |
 | Alpine Astronomical Baader SLOAN/SDSS r' Filter (50 x 50mm Square, Unmounted) FSLN-SQ50R *Save The Tax Instantly! Use B&H Payboo to get an ...[Pre Order - allow extra time] Alpine Astronomical Baader SLOAN/SDSS r' Filter (50 x 50mm Square, Unmounted) SLOAN-r' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges ... more
Alpine Astronomical Baader SLOAN/SDSS r' Filter (50 x 50mm Square, Unmounted) FSLN-SQ50R [Pre Order - allow extra time] Alpine Astronomical Baader SLOAN/SDSS r' Filter (50 x 50mm Square, Unmounted) SLOAN-r' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges | FREE shipping go to store |
 | Alpine Astronomical Baader S-II Narrowband Filter (1.25" Eyepiece Filter Filter) FCSIIN-1 [Pre Order - allow extra time] Alpine Astronomical Baader S-II Narrowband Filter (1.25" Eyepiece Filter Filter) 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 ... more
Alpine Astronomical Baader S-II Narrowband Filter (1.25" Eyepiece Filter Filter) FCSIIN-1 [Pre Order - allow extra time] Alpine Astronomical Baader S-II Narrowband Filter (1.25" Eyepiece Filter Filter) 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 | FREE shipping go to store |
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