Alpine Astronomical Baader Solar Continuum Filter 7.5nm (540nm, 1.25") FSOL-1N

Alpine Astronomical Baader CMOS-Optimized UV/IR Bandpass L Filter (1.25" Eyepiece Filter) FCUVIR-1

[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

Alpine Astronomical Baader Double Polarizing Filter (1.25") FPOL-1D

[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

Alpine Astronomical Baader Yellow Colored Bandpass Eyepiece Filter (1.25") FCFY-1

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

Alpine Astronomical Baader Contrast Booster Filter (1.25") FCB-1

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

Alpine Astronomical Baader 1.25" T-2 Nosepiece T2-14

Free Shipping! Alpine Astronomical Baader 1.25" T-2 Nosepiece Part of the Astro T-2 Modular System, For 1.25" Focusers & Accessories, T-2 Mount for Multiple Accessories, Threaded for Eyepiece Filters ... more

Alpine Astronomical Baader 2" to 1.25" Reducer Adapter T2-15

[Pre Order - allow extra time] Alpine Astronomical Baader 2" to 1.25" Reducer Adapter Part of the Astro T-2 Modular System, Use Smaller Eyepieces and Accessories, Fits Focusers, Barlows, and Diagonals, Standard T-2 Male Threads, 2" Filter Threads ... 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 ... more