Binoculars & Telescopes › Alpine › Accessory › Filter

Free Express Shipping! Alpine Astronomical Baader 0.6 Neutral Density Filter (... Free Express Shipping! Alpine Astronomical Baader 0.6 Neutral Density Filter (1.25") Ideal for Lunar Observation, Phantom Group Optical Coatings, Fits 1.25" Eyepieces and Accessories, 0.6 Optical Density, 25% Transmission, 4 Reduction Factor, Stackable... more

Free Express Shipping! Alpine Astronomical Baader Yellow Colored Bandpass Eyep... Free Express Shipping! Alpine Astronomical Baader Yellow Colored Bandpass Eyepiece Filter (1.25") Planetary Viewing/Imaging Filter, 495nm Wavelength Bandpass, 1.25" Eyepiece Threads, 7-Layer Anti-Reflection Multi-Coated, No Reflections, Scatter or... more

[Pre Order - allow extra time] Alpine Astronomical Baader Double Polarizing Fi... [Pre Order - allow extra time] Alpine Astronomical Baader Double Polarizing Filter (1.25") Double Rotating Filter Cells, Ideal for Lunar & Planetary Viewing, Enhances Overall Image Contrast, Standard 1.25" Eyepiece Filter Threads, Allows Solar Viewing... more

Free Express Shipping! Alpine Astronomical Alpine Astronomical Baader Single P... 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

[Pre Order - allow extra time] Alpine Astronomical Baader 685nm IR-Pass Filter... [Pre Order - allow extra time] Alpine Astronomical Baader 685nm IR-Pass Filter (1.25") Ideal for Planetary Viewing and Imaging, View in the Long Deep-Red Wavelength, IR Phantom-Group Optical Multi-Coatings, Passes the Narrow 685nm Bandwidth, Fits... more

Free Express Shipping! Alpine Astronomical Baader Contrast Booster Filter (1.2... Free Express Shipping! Alpine Astronomical Baader Contrast Booster Filter (1.25") Ideal for Lunar and Planetary Viewing, Boosts Contrast and Sharpness, Natural Light Pollution Blocking, Eliminates False Colors, Removes the Common Bluish "Hue", Both... more

Free Express Shipping! Alpine Astronomical Baader Neodymium Moon & Skyglow Fil... Free Express Shipping! 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 Enhanced Natural... more

[Pre Order - allow extra time] Alpine Astronomical Baader H-alpha Narrowband F... [Pre Order - allow extra time] Alpine Astronomical Baader H-alpha Narrowband Filter (2") 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 CMOS-Optimized UV/IR Bandpass L Filter (2" Eyepiece... Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (2" Eyepiece Filter) UV/IR Cut: 420-685nm, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges TELESCOPES-Astro Imaging Filters more

[Pre Order - allow extra time] Alpine Astronomical Baader CMOS-Optimized UV/IR... [Pre Order - allow extra time] Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (1.25" Eyepiece Filter) UV/IR Cut: 420-685nm, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges more

Free Express Shipping! Alpine Astronomical Baader Solar Continuum Filter 7.5nm... Free Express Shipping! Alpine Astronomical Baader Solar Continuum Filter 7.5nm (540nm, 2") Enhances Contrast in Solar Viewing, Filter Centered on 540nm Wavelength, Narrow 7.5nm Half-Bandpass, AR-Coated, Planeoptically Polished more

Free Express Shipping! Alpine Astronomical Baader UHC-L Ultra-L-Booster Nebula... Free Express Shipping! Alpine Astronomical Baader UHC-L Ultra-L-Booster Nebula Filter (2" Eyepiece) Blocks City Light Pollution, Increases Contrast of Nebulae & Comets, CMOS-Optimized, Ideal for Astrophotography & Observation, Reflex-Blocker Coatings... more

Free Express Shipping! Alpine Astronomical Baader Solar Continuum Filter 7.5nm... Free Express Shipping! Alpine Astronomical Baader Solar Continuum Filter 7.5nm (540nm, 1.25") Enhances Contrast in Solar Viewing, Filter Centered on 540nm Wavelength, Narrow 7.5nm Half-Bandpass, AR-Coated, Planeoptically Polished more

Free Express Shipping! Alpine Astronomical Baader SLOAN/SDSS g' Filter (2" Eye... Free Express Shipping! Alpine Astronomical Baader SLOAN/SDSS g' Filter (2" Eyepiece Filter) SLOAN-g' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges more

Free Express Shipping! Alpine Astronomical Baader SLOAN/SDSS r' Filter (2" Eye... Free Express Shipping! Alpine Astronomical Baader SLOAN/SDSS r' Filter (2" Eyepiece Filter) SLOAN-r' Bandpass Filter, Optimized for CMOS, Suitable for CCD, Reflex-Blocker Hard Coated, Life-Coat Sealed Coating Edges more

[Pre Order - allow extra time] Alpine Astronomical Baader 1.8 Neutral Density ... [Pre Order - allow extra time] Alpine Astronomical Baader 1.8 Neutral Density Filter (2") Ideal for Lunar Observation, Phantom Group Optical Coatings, Fits 2" Eyepieces and Accessories, 1.8 Optical Density, 1.0% Transmission, 64 Reduction Factor,... more