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Closed on Friday Aug. 12. We will be attending the opening of Étwal. Click here to learn more on the activities offered by this new observatory!

Research Filters

Research Filters

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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$223.30 - US$435.60
    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$223.30 - US$435.60
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    US$223.30 - US$435.60
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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$261.80 - US$665.50
    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$261.80 - US$665.50
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    US$261.80 - US$665.50
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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$261.80 - US$665.50
    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$261.80 - US$665.50
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    Qty in Cart: 0
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    US$261.80 - US$665.50
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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$261.80 - US$665.50
    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$261.80 - US$665.50
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    Qty in Cart: 0
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    US$261.80 - US$665.50
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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$261.80 - US$665.50
    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$261.80 - US$665.50
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    Qty in Cart: 0
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    US$261.80 - US$665.50
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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$261.80 - US$665.50
    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$261.80 - US$665.50
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    Qty in Cart: 0
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    US$261.80 - US$665.50
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  • Astrodon Sloan Gen2 g' Filter Astrodon Sloan Gen2 g' Filter
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    Astrodon Sloan Gen2 g' Filter

    Astrodon

    US$256.30 - US$665.50
    50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95%  (>90% for u’) <=0.03%Tabs out-of-band 300 – 1100 nm Single striae-free fused silica substrates 1/4-wave propagated wavefront prior to...
    US$256.30 - US$665.50
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    Qty in Cart: 0
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    US$256.30 - US$665.50
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  • Astrodon Sloan Gen2 i' Filter Astrodon Sloan Gen2 i' Filter
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    Astrodon Sloan Gen2 i' Filter

    Astrodon

    US$256.30 - US$665.50
    50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95%  (>90% for u’) <=0.03%Tabs out-of-band 300 – 1100 nm Single striae-free fused silica substrates 1/4-wave propagated wavefront prior to...
    US$256.30 - US$665.50
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    Qty in Cart: 0
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    US$256.30 - US$665.50
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  • Astrodon Sloan Gen2 r' Filter Astrodon Sloan Gen2 r' Filter
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    Astrodon Sloan Gen2 r' Filter

    Astrodon

    US$256.30 - US$665.50
    50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95%  (>90% for u’) <=0.03%Tabs out-of-band 300 – 1100 nm Single striae-free fused silica substrates 1/4-wave propagated wavefront prior to...
    US$256.30 - US$665.50
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    Qty in Cart: 0
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    US$256.30 - US$665.50
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  • Astrodon Sloan Gen2 u' Filter Astrodon Sloan Gen2 u' Filter
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    Astrodon Sloan Gen2 u' Filter

    Astrodon

    US$256.30 - US$665.50
    50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95%  (>90% for u’) <=0.03%Tabs out-of-band 300 – 1100 nm Single striae-free fused silica substrates 1/4-wave propagated wavefront prior to...
    US$256.30 - US$665.50
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    Qty in Cart: 0
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    US$256.30 - US$665.50
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  • Astrodon Sloan Gen2 Y Filter Astrodon Sloan Gen2 Y Filter
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    Astrodon Sloan Gen2 Y Filter

    Astrodon

    US$256.30 - US$665.50
    50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95%  (>90% for u’) <=0.03%Tabs out-of-band 300 – 1100 nm Single striae-free fused silica substrates 1/4-wave propagated wavefront prior to...
    US$256.30 - US$665.50
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    Qty in Cart: 0
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    US$256.30 - US$665.50
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  • Astrodon Sloan Gen2 z' Filter Astrodon Sloan Gen2 z' Filter
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    Astrodon Sloan Gen2 z' Filter

    Astrodon

    US$256.30 - US$665.50
    50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95%  (>90% for u’) <=0.03%Tabs out-of-band 300 – 1100 nm Single striae-free fused silica substrates 1/4-wave propagated wavefront prior to...
    US$256.30 - US$665.50
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    Qty in Cart: 0
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    US$256.30 - US$665.50
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  • Astrodon Sloan Gen2 z_s Filter Astrodon Sloan Gen2 z_s Filter
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    Astrodon Sloan Gen2 z_s Filter

    Astrodon

    US$256.30 - US$665.50
    50% transmission points provided above (+/- 3nm typical) Peak transmission guaranteed > 95%  (>90% for u’) <=0.03%Tabs out-of-band 300 – 1100 nm Single striae-free fused silica substrates 1/4-wave propagated wavefront prior to...
    US$256.30 - US$665.50
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    Qty in Cart: 0
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    US$256.30 - US$665.50
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