Skip to content
ZWO EAFN Desktop
IMPORTANT: Starting May 14st, all orders for products that are made in China, regardless of their value, will be subjected to 30% tariffs when imported in the USA. These fees will be billed to you by the carrier, and are your responsibility.
IMPORTANT: Starting May 14st, all orders for products that are made in China, regardless of their value, will be subjected to 30% tariffs when imported in the USA. These fees will be billed to you by the carrier, and are your responsibility.

Country

Sales

  • Original price $484.00 USD - Original price $484.00 USD
    Original price
    $484.00 USD
    $484.00 USD - $484.00 USD
    Current price $484.00 USD

    Astrodon H-alpha Filter - 5nm

    DON-HA5_31R
    Only 1 left!

    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 i...

    View full details
    Original price $484.00 USD - Original price $484.00 USD
    Original price
    $484.00 USD
    $484.00 USD - $484.00 USD
    Current price $484.00 USD
  • Original price $484.00 USD
    Original price $484.00 USD - Original price $484.00 USD
    Original price $484.00 USD
    Current price $425.00 USD
    $425.00 USD - $425.00 USD
    Current price $425.00 USD

    Astrodon SII Filter - 5nm

    DON-SII5_31R
    Only 1 left!

    If you want the look of Hubble Space Telescope (HST) images, such as the famous “Pillars of Creation” (the Eagle Nebula, Messier 16), then the next...

    View full details
    Original price $484.00 USD
    Original price $484.00 USD - Original price $484.00 USD
    Original price $484.00 USD
    Current price $425.00 USD
    $425.00 USD - $425.00 USD
    Current price $425.00 USD
    Save 12% Save %
  • Original price $282.83 USD
    Original price $282.83 USD - Original price $282.83 USD
    Original price $282.83 USD
    Current price $238.37 USD
    $238.37 USD - $238.37 USD
    Current price $238.37 USD

    Baader 4nm 1.25" Ultra-Narrowband OIII Filter - CMOS-Optimized (USED)

    BAA-2961400-125-USED
    Only 1 left!

    In perfect condition, used Baader H-alpha / O-III / S-II Ultra-Narrowband (Narrowband) filter set - Premium Grade 3.5 / 4 nm half width (to harmo...

    View full details
    Original price $282.83 USD
    Original price $282.83 USD - Original price $282.83 USD
    Original price $282.83 USD
    Current price $238.37 USD
    $238.37 USD - $238.37 USD
    Current price $238.37 USD
    Save 16% Save %
  • Original price $193.17 USD
    Original price $193.17 USD - Original price $193.17 USD
    Original price $193.17 USD
    Current price $180.78 USD
    $180.78 USD - $180.78 USD
    Current price $180.78 USD

    Baader 6.5nm 36mm H-alpha Filter - CMOS-Optimized (OPEN BOX)

    BAA-2961100-36-OPENBOX
    Only 1 left!

    In perfect condition, open box Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade 6.5 nm FWHM, recommended for optical systems...

    View full details
    Original price $193.17 USD
    Original price $193.17 USD - Original price $193.17 USD
    Original price $193.17 USD
    Current price $180.78 USD
    $180.78 USD - $180.78 USD
    Current price $180.78 USD
    Save 6% Save %
  • Original price $306.16 USD
    Original price $306.16 USD - Original price $306.16 USD
    Original price $306.16 USD
    Current price $209.94 USD
    $209.94 USD - $209.94 USD
    Current price $209.94 USD

    Baader CCD LRGB 31mm Unmounted Filter Set (OPEN BOX)

    BAA-2459474-OPENBOX
    Only 1 left!

    In perfect condition, open box Filter size 31 mm - round, unmounted - filter thickness 2 mm Set of L-R-G-B filters High-quality anti-reflective ...

    View full details
    Original price $306.16 USD
    Original price $306.16 USD - Original price $306.16 USD
    Original price $306.16 USD
    Current price $209.94 USD
    $209.94 USD - $209.94 USD
    Current price $209.94 USD
    Save 31% Save %
  • Original price $219.99 USD
    Original price $219.99 USD - Original price $219.99 USD
    Original price $219.99 USD
    Current price $119.99 USD
    $119.99 USD - $119.99 USD
    Current price $119.99 USD

    Explore Scientific 68° 16mm Waterproof Eyepiece - 1.25"

    ES-EPWP6816-01
    1 in stock

    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...

    View full details
    Original price $219.99 USD
    Original price $219.99 USD - Original price $219.99 USD
    Original price $219.99 USD
    Current price $119.99 USD
    $119.99 USD - $119.99 USD
    Current price $119.99 USD
    Save 45% Save %
  • Original price $219.99 USD
    Original price $219.99 USD - Original price $219.99 USD
    Original price $219.99 USD
    Current price $119.99 USD
    $119.99 USD - $119.99 USD
    Current price $119.99 USD

    Explore Scientific 68° 20mm Waterproof Eyepiece - 1.25"

    ES-EPWP6820-01
    1 in stock

    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...

    View full details
    Original price $219.99 USD
    Original price $219.99 USD - Original price $219.99 USD
    Original price $219.99 USD
    Current price $119.99 USD
    $119.99 USD - $119.99 USD
    Current price $119.99 USD
    Save 45% Save %
  • Original price $269.99 USD
    Original price $269.99 USD - Original price $269.99 USD
    Original price $269.99 USD
    Current price $169.99 USD
    $169.99 USD - $169.99 USD
    Current price $169.99 USD

    Explore Scientific 68° 24mm Waterproof Eyepiece - 1.25"

    ES-EPWP6824-01
    3 in stock

    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...

    View full details
    Original price $269.99 USD
    Original price $269.99 USD - Original price $269.99 USD
    Original price $269.99 USD
    Current price $169.99 USD
    $169.99 USD - $169.99 USD
    Current price $169.99 USD
    Save 37% Save %
  • Original price $299.99 USD
    Original price $299.99 USD - Original price $299.99 USD
    Original price $299.99 USD
    Current price $179.99 USD
    $179.99 USD - $179.99 USD
    Current price $179.99 USD

    Explore Scientific 68° 28mm Waterproof Eyepiece - 2"

    ES-EPWP6828-01
    1 in stock

    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...

    View full details
    Original price $299.99 USD
    Original price $299.99 USD - Original price $299.99 USD
    Original price $299.99 USD
    Current price $179.99 USD
    $179.99 USD - $179.99 USD
    Current price $179.99 USD
    Save 40% Save %
  • Original price $419.99 USD
    Original price $419.99 USD - Original price $419.99 USD
    Original price $419.99 USD
    Current price $259.99 USD
    $259.99 USD - $259.99 USD
    Current price $259.99 USD

    Explore Scientific 68° 34mm Waterproof Eyepiece - 2"

    ES-EPWP6834-01

    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...

    View full details
    Original price $419.99 USD
    Original price $419.99 USD - Original price $419.99 USD
    Original price $419.99 USD
    Current price $259.99 USD
    $259.99 USD - $259.99 USD
    Current price $259.99 USD
    Save 38% Save %
  • Original price $519.99 USD
    Original price $519.99 USD - Original price $519.99 USD
    Original price $519.99 USD
    Current price $399.99 USD
    $399.99 USD - $399.99 USD
    Current price $399.99 USD

    Explore Scientific 68° 40mm Waterproof Eyepiece - 2"

    ES-EPWP6840-01
    1 in stock

    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coating...

    View full details
    Original price $519.99 USD
    Original price $519.99 USD - Original price $519.99 USD
    Original price $519.99 USD
    Current price $399.99 USD
    $399.99 USD - $399.99 USD
    Current price $399.99 USD
    Save 23% Save %
  • Original price $599.99 USD
    Original price $599.99 USD - Original price $599.99 USD
    Original price $599.99 USD
    Current price $499.99 USD
    $499.99 USD - $499.99 USD
    Current price $499.99 USD

    Explore Scientific AR102 Doublet Refractor

    ES-DAR102065-01
    1 in stock

    The Explore Scientific AR Air-Spaced Doublet Series telescopes are classic air-spaced, crown-and-flint, doublet achromatic f/6.5 refractors with a ...

    View full details
    Original price $599.99 USD
    Original price $599.99 USD - Original price $599.99 USD
    Original price $599.99 USD
    Current price $499.99 USD
    $499.99 USD - $499.99 USD
    Current price $499.99 USD
    Save 17% Save %
  • Original price $1,099.99 USD - Original price $1,099.99 USD
    Original price $1,099.99 USD
    $1,099.99 USD
    $1,099.99 USD - $1,099.99 USD
    Current price $1,099.99 USD

    Explore Scientific ED102 Essential Series Triplet APO Refractor

    ES-ED10207-02

    The Explore Scientific ED102 Essential Series Air-Spaced Triplet APO Refractor Telescope is a true apochromat refractor that reveals our Moon’s sta...

    View full details
    Original price $1,099.99 USD - Original price $1,099.99 USD
    Original price $1,099.99 USD
    $1,099.99 USD
    $1,099.99 USD - $1,099.99 USD
    Current price $1,099.99 USD
  • Original price $1,799.99 USD
    Original price $1,799.99 USD - Original price $1,799.99 USD
    Original price $1,799.99 USD
    Current price $1,699.99 USD
    $1,699.99 USD - $1,699.99 USD
    Current price $1,699.99 USD

    Explore Scientific ED102-FCD100 Series Triplet APO Refractor

    ES-FCD100-10207-01

    Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures ...

    View full details
    Original price $1,799.99 USD
    Original price $1,799.99 USD - Original price $1,799.99 USD
    Original price $1,799.99 USD
    Current price $1,699.99 USD
    $1,699.99 USD - $1,699.99 USD
    Current price $1,699.99 USD
    Save 6% Save %
  • Original price $2,249.99 USD
    Original price $2,249.99 USD - Original price $2,249.99 USD
    Original price $2,249.99 USD
    Current price $2,049.99 USD
    $2,049.99 USD - $2,049.99 USD
    Current price $2,049.99 USD

    Explore Scientific ED102-FCD100 Series Triplet Telescope - Carbon Fiber

    ES-FCD100-10207-CF

    The Explore Scientific ED102-FCD100 Series Air-Spaced Triplet Telescope in Carbon Fiber, has the advantages for astrophotographers and visual astro...

    View full details
    Original price $2,249.99 USD
    Original price $2,249.99 USD - Original price $2,249.99 USD
    Original price $2,249.99 USD
    Current price $2,049.99 USD
    $2,049.99 USD - $2,049.99 USD
    Current price $2,049.99 USD
    Save 9% Save %
  • Original price $1,799.99 USD
    Original price $1,799.99 USD - Original price $1,799.99 USD
    Original price $1,799.99 USD
    Current price $1,699.99 USD
    $1,699.99 USD - $1,699.99 USD
    Current price $1,699.99 USD

    Explore Scientific ED127 Essential Series Triplet APO Refractor

    ES-ED127075-03

    The Original Classic Explore Scientific ED127 Air-Spaced Triplet, Retooled for the Astrophotographer:

    Original price $1,799.99 USD
    Original price $1,799.99 USD - Original price $1,799.99 USD
    Original price $1,799.99 USD
    Current price $1,699.99 USD
    $1,699.99 USD - $1,699.99 USD
    Current price $1,699.99 USD
    Save 6% Save %
  • Original price $4,499.99 USD
    Original price $4,499.99 USD - Original price $4,499.99 USD
    Original price $4,499.99 USD
    Current price $2,999.99 USD
    $2,999.99 USD - $2,999.99 USD
    Current price $2,999.99 USD

    Explore Scientific ED152 Triplet in Carbon Fiber

    ES-TED15208CF-HEXDD3

    Serious amateur astronomers who choose apochromatic refractors know that generally once you start using an instrument larger than 127mm, that the l...

    View full details
    Original price $4,499.99 USD
    Original price $4,499.99 USD - Original price $4,499.99 USD
    Original price $4,499.99 USD
    Current price $2,999.99 USD
    $2,999.99 USD - $2,999.99 USD
    Current price $2,999.99 USD
    Save 33% Save %
  • Original price $799.99 USD
    Original price $799.99 USD - Original price $799.99 USD
    Original price $799.99 USD
    Current price $599.99 USD
    $599.99 USD - $599.99 USD
    Current price $599.99 USD

    Explore Scientific ED80 Essential Series Triplet APO Refractor

    ES-ED0806-02
    1 in stock

    The ED80 Essential Series Air-Spaced Triplet Refractor is a true apochromatic telescope that reveals celestial wonders like the desolate beauty of ...

    View full details
    Original price $799.99 USD
    Original price $799.99 USD - Original price $799.99 USD
    Original price $799.99 USD
    Current price $599.99 USD
    $599.99 USD - $599.99 USD
    Current price $599.99 USD
    Save 25% Save %
  • Original price $1,299.99 USD
    Original price $1,299.99 USD - Original price $1,299.99 USD
    Original price $1,299.99 USD
    Current price $999.99 USD
    $999.99 USD - $999.99 USD
    Current price $999.99 USD

    Explore Scientific ED80-FCD100 Series Triplet APO Refractor

    ES-FCD100-0806-01

    Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures ...

    View full details
    Original price $1,299.99 USD
    Original price $1,299.99 USD - Original price $1,299.99 USD
    Original price $1,299.99 USD
    Current price $999.99 USD
    $999.99 USD - $999.99 USD
    Current price $999.99 USD
    Save 23% Save %
  • Original price $2,999.99 USD
    Original price $2,999.99 USD - Original price $2,999.99 USD
    Original price $2,999.99 USD
    Current price $2,599.99 USD
    $2,599.99 USD - $2,599.99 USD
    Current price $2,599.99 USD

    Explore Scientific FCD100 Series 127mm f/7.5 Triplet APO Refractor - Carbon Fiber with 2.5" HEX Focuser

    ES-FCD100-127075-CF

    Reveal celestial wonders like the desolate beauty of the lunar terrain, the serene structure of Saturn’s rings or the brightest deep sky treasures ...

    View full details
    Original price $2,999.99 USD
    Original price $2,999.99 USD - Original price $2,999.99 USD
    Original price $2,999.99 USD
    Current price $2,599.99 USD
    $2,599.99 USD - $2,599.99 USD
    Current price $2,599.99 USD
    Save 13% Save %
  • Original price $399.99 USD
    Original price $399.99 USD - Original price $399.99 USD
    Original price $399.99 USD
    Current price $319.99 USD
    $319.99 USD - $319.99 USD
    Current price $319.99 USD

    Explore Scientific FirstLight 100mm Mak-Cassegrain with EQ3 Mount

    ES-FL-MC1001400EQ3
    6 in stock

    Whether you’re looking to delve into the details of our solar system or explore inspiring deep sky treasures, the versatile FirstLight series has a...

    View full details
    Original price $399.99 USD
    Original price $399.99 USD - Original price $399.99 USD
    Original price $399.99 USD
    Current price $319.99 USD
    $319.99 USD - $319.99 USD
    Current price $319.99 USD
    Save 20% Save %
  • Original price $379.99 USD
    Original price $379.99 USD - Original price $379.99 USD
    Original price $379.99 USD
    Current price $329.99 USD
    $329.99 USD - $329.99 USD
    Current price $329.99 USD

    Explore Scientific FirstLight 100mm Mak-Cassegrain with Twilight Nano Mount

    ES-FL-MC1001400TN
    2 in stock

    Whether you’re looking to delve into the details of our solar system or explore inspiring deep sky treasures, the versatile FirstLight series has a...

    View full details
    Original price $379.99 USD
    Original price $379.99 USD - Original price $379.99 USD
    Original price $379.99 USD
    Current price $329.99 USD
    $329.99 USD - $329.99 USD
    Current price $329.99 USD
    Save 13% Save %
  • Original price $379.99 USD
    Original price $379.99 USD - Original price $379.99 USD
    Original price $379.99 USD
    Current price $279.99 USD
    $279.99 USD - $279.99 USD
    Current price $279.99 USD

    Explore Scientific FirstLight 102mm Doublet Refractor with EXOS EQ Nano Mount

    ES-FL-AR1021000EQ3

    Whether you’re looking to delve into the details of our solar system or explore inspiring deep sky treasures, the versatile FirstLight series has a...

    View full details
    Original price $379.99 USD
    Original price $379.99 USD - Original price $379.99 USD
    Original price $379.99 USD
    Current price $279.99 USD
    $279.99 USD - $279.99 USD
    Current price $279.99 USD
    Save 26% Save %
  • Original price $324.99 USD
    Original price $324.99 USD - Original price $324.99 USD
    Original price $324.99 USD
    Current price $249.99 USD
    $249.99 USD - $249.99 USD
    Current price $249.99 USD

    Explore Scientific FirstLight 102mm Doublet Refractor with Twilight Nano Mount

    ES-FL-AR102600TN

    Whether you’re looking to delve into the details of our solar system or explore inspiring deep sky treasures, the versatile FirstLight series has a...

    View full details
    Original price $324.99 USD
    Original price $324.99 USD - Original price $324.99 USD
    Original price $324.99 USD
    Current price $249.99 USD
    $249.99 USD - $249.99 USD
    Current price $249.99 USD
    Save 23% Save %