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  • APM Herschel Wedge w/ ND3 Filter - 2"-1 APM Herschel Wedge w/ ND3 Filter - 2"-2
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    APM Herschel Wedge w/ ND3 Filter - 2"

    APM

    US$340.00
    Herschelprism with ceramic and 2 "Fast-Lock OkularadapterFor solar white light imaging and white light visual observing. The APM White Light Wedge comes with a built in ND3 filter which allows perfectly safe imaging or visual observing of the SunThe...
    APM-Herschel-2-DX
    US$340.00
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    US$340.00
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  • APM ND 3.0 Filter - 1.25"-1 APM ND 3.0 Filter - 1.25"-2
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    APM ND 3.0 Filter - 1.25"

    APM

    US$30.00
    Grey Filter ND 3,0 (1000x) 0,1%  1,25''ApplicationsThis filter will be used in a Herschel Wedge, to reduce the transmitted light to a usable amount. Additional you need a second grey filter or polar filter or Solar Continuum filter.AdaptionThe...
    APM-ND3.0-125
    US$30.00
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    US$30.00
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  • Astrodon 52mm Screw-in Filter Cell
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    Astrodon 52mm Screw-in Filter Cell

    Astrodon

    US$20.00
    Astrodon 52mm Screw-in Filter Cell is for placing Astrodon 50 mm diameter filters in 52 mm threaded mounts for camera lenses.
    DON-AD52MMCELL
    US$20.00
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    US$20.00
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  • Astrodon Blue Filter - E & I Series Astrodon Blue Filter - E & I Series
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    Astrodon Blue Filter - E & I Series

    Astrodon

    US$184.00 - US$403.00
    Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ. Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets have revolutionized CCD imaging. Their popularity is due to their ease-of-use, high optical...
    US$184.00 - US$403.00
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    US$184.00 - US$403.00
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  • Astrodon Exo-Planet Filter - Clear with Blue-Blocking Astrodon Exo-Planet Filter - Clear with Blue-Blocking
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    Astrodon Exo-Planet Filter - Clear with Blue-Blocking

    Astrodon

    US$185.00 - US$360.00
    Astrodon introduced the ExoPlanet-BB filter for use in amateur-scale telescopes to measure light curves of exoplanets. Although it may not seem possible at first, astronomers with typical backyard equipment and sensitive CCD cameras have the capability...
    US$185.00 - US$360.00
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    US$185.00 - US$360.00
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  • Astrodon Green Filter - E Series Astrodon Green Filter - E Series
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    Astrodon Green Filter - E Series

    Astrodon

    US$184.00 - US$403.00
    Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ. Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets have revolutionized CCD imaging. Their popularity is due to their ease-of-use, high optical...
    US$184.00 - US$403.00
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    US$184.00 - US$403.00
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  • Astrodon Green Filter - I Series Astrodon Green Filter - I Series
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    Astrodon Green Filter - I Series

    Astrodon

    US$184.00 - US$403.00
    Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ. Astrodon LRGB Gen2 I-Series Tru-Balance Filters are designed to approximately equalize the flux of  Interline CCD detectors (formerly Kodak),...
    US$184.00 - US$403.00
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    US$184.00 - US$403.00
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  • Astrodon H-alpha Filter - 3nm
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    Astrodon H-alpha Filter - 3nm

    Astrodon

    US$564.00 - US$1,438.00
    H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter. Hydrogen is ubiquitous in the cosmos and is present in emission nebula (North American, Pelican), planetary nebula (Dumbbell, Ring), Wolf-Rayet...
    US$564.00 - US$1,438.00
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    US$564.00 - US$1,438.00
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  • Astrodon H-alpha Filter - 5nm
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    Astrodon H-alpha Filter - 5nm

    Astrodon

    US$380.00 - US$1,024.00
    H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter. Hydrogen is ubiquitous in the cosmos and is present in emission nebula (North American, Pelican), planetary nebula (Dumbbell, Ring), Wolf-Rayet...
    US$380.00 - US$1,024.00
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    US$380.00 - US$1,024.00
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  • Astrodon Johnson/Cousins B Filter Astrodon Johnson/Cousins B Filter
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    Astrodon Johnson/Cousins B Filter

    Astrodon

    US$216.00 - US$550.00
    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small light leaks that affected measurements of reddest stars in our initial filters 100% coated – no colored...
    US$216.00 - US$550.00
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    US$216.00 - US$550.00
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  • Astrodon Johnson/Cousins Ic Filter Astrodon Johnson/Cousins Ic Filter
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    Astrodon Johnson/Cousins Ic Filter

    Astrodon

    US$216.00 - US$550.00
    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small light leaks that affected measurements of reddest stars in our initial filters 100% coated – no colored...
    US$216.00 - US$550.00
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    US$216.00 - US$550.00
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  • Astrodon Johnson/Cousins Rc Filter Astrodon Johnson/Cousins Rc Filter
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    Astrodon Johnson/Cousins Rc Filter

    Astrodon

    US$216.00 - US$550.00
    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small light leaks that affected measurements of reddest stars in our initial filters 100% coated – no colored...
    US$216.00 - US$550.00
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    US$216.00 - US$550.00
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  • Astrodon Johnson/Cousins U Filter Astrodon Johnson/Cousins U Filter
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    Astrodon Johnson/Cousins U Filter

    Astrodon

    US$216.00 - US$550.00
    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small light leaks that affected measurements of reddest stars in our initial filters 100% coated – no colored...
    US$216.00 - US$550.00
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    US$216.00 - US$550.00
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  • Astrodon Johnson/Cousins V Filter Astrodon Johnson/Cousins V Filter
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    Astrodon Johnson/Cousins V Filter

    Astrodon

    US$216.00 - US$550.00
    Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small light leaks that affected measurements of reddest stars in our initial filters 100% coated – no colored...
    US$216.00 - US$550.00
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    US$216.00 - US$550.00
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  • Astrodon L2P Light Pollution Luminance Filter
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    Astrodon L2P Light Pollution Luminance Filter

    Astrodon

    US$169.00
    Our L2P filters are designed to be used the same way that you would use a regular Astrodon Luminance filter, either by itself or as part of a LRGB filter set. The L2P filter differs from our standard Astrodon Luminance filter in that, in addition to the...
    US$169.00
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    US$169.00
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  • Astrodon LRGB Filter Set - E Series Astrodon LRGB Filter Set - E Series
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    Astrodon LRGB Filter Set - E Series

    Astrodon

    US$547.00 - US$2,740.00
    Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets have revolutionized CCD imaging. Their popularity is due to their ease-of-use, high optical throughput and great resulting colors for galaxies, star clusters and nebulae. E-Series filters are...
    US$547.00 - US$2,740.00
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    US$547.00 - US$2,740.00
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