Skip to content
ZWO Seestar S30 Desktop
Holiday Schedule: We’ll be taking a short break from December 24th to December 29th to enjoy the holidays. During this time, the store will be closed, no orders will be shipped, and support will be unavailable. Happy Holidays!
Holiday Schedule: We’ll be taking a short break from December 24th to December 29th to enjoy the holidays. During this time, the store will be closed, no orders will be shipped, and support will be unavailable. Happy Holidays!

Optical Accessories

Filters

  • Sold out
    $419.99 USD
    $419.99 USD - $419.99 USD
    $419.99 USD
    $259.99 USD
    $259.99 USD - $259.99 USD
    $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
    $419.99 USD
    $419.99 USD - $419.99 USD
    $419.99 USD
    $259.99 USD
    $259.99 USD - $259.99 USD
    $259.99 USD
    Sold out
  • Save 23% Save %
    $519.99 USD
    $519.99 USD - $519.99 USD
    $519.99 USD
    $399.99 USD
    $399.99 USD - $399.99 USD
    $399.99 USD

    Explore Scientific 68° 40mm Waterproof Eyepiece - 2"

    ES-EPWP6840-01

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

    View full details
    $519.99 USD
    $519.99 USD - $519.99 USD
    $519.99 USD
    $399.99 USD
    $399.99 USD - $399.99 USD
    $399.99 USD
    Save 23% Save %
  • $99.99 USD - $99.99 USD
    $99.99 USD
    $99.99 USD - $99.99 USD
    $99.99 USD

    Explore Scientific 70° 25mm Eyepiece - 2"

    ES-EP7025-00

    The new eyepiece design represent a major advance compared to the original Plössl and Super-Plössl design. The five element design features tack sh...

    View full details
    $99.99 USD - $99.99 USD
    $99.99 USD
    $99.99 USD - $99.99 USD
    $99.99 USD
  • $229.99 USD - $229.99 USD
    $229.99 USD
    $229.99 USD - $229.99 USD
    $229.99 USD

    Explore Scientific 82° 11mm Waterproof Eyepiece - 1.25"

    ES-EPWP8211-01
    Only 2 left!

    The 11mm 82° Series Waterproof Argon-Purged Eyepiece is a popular focal length in the upper-medium power magnification class providing both super-w...

    View full details
    $229.99 USD - $229.99 USD
    $229.99 USD
    $229.99 USD - $229.99 USD
    $229.99 USD
  • Sold out
    $229.99 USD - $229.99 USD
    $229.99 USD
    $229.99 USD - $229.99 USD
    $229.99 USD

    Explore Scientific 82° 14mm Waterproof Eyepiece - 1.25"

    ES-EPWP8214-01

    The 14mm 82° Series Waterproof Argon-Purged Eyepiece is a popular focal length in the upper-medium power magnification class providing both super-w...

    View full details
    $229.99 USD - $229.99 USD
    $229.99 USD
    $229.99 USD - $229.99 USD
    $229.99 USD
    Sold out
  • Sold out
    $319.99 USD - $319.99 USD
    $319.99 USD
    $319.99 USD - $319.99 USD
    $319.99 USD

    Explore Scientific 82° 18mm Waterproof Eyepiece - 2"

    ES-EPWP8218-01

    The 18mm 82° Series Waterproof Argon-Purged Eyepiece is a popular focal length in the upper-medium power magnification class providing both super-w...

    View full details
    $319.99 USD - $319.99 USD
    $319.99 USD
    $319.99 USD - $319.99 USD
    $319.99 USD
    Sold out
  • Save 66% Save %
    $439.99 USD
    $439.99 USD - $439.99 USD
    $439.99 USD
    $149.99 USD
    $149.99 USD - $149.99 USD
    $149.99 USD

    Explore Scientific 82° 24mm Waterproof Eyepiece - 2"

    ES-EPWP8224-01
    Only 5 left!

    The 24mm 82° Series Waterproof Argon-Purged Eyepiece is a popular focal length in the upper-medium power magnification class providing both super-w...

    View full details
    $439.99 USD
    $439.99 USD - $439.99 USD
    $439.99 USD
    $149.99 USD
    $149.99 USD - $149.99 USD
    $149.99 USD
    Save 66% Save %
  • Save 60% Save %
    $499.99 USD
    $499.99 USD - $499.99 USD
    $499.99 USD
    $199.99 USD
    $199.99 USD - $199.99 USD
    $199.99 USD

    Explore Scientific 82° 30mm Waterproof Eyepiece - 2"

    ES-EPWP8230-01
    Only 2 left!

    “I just recently purchased my first E.S. telescope after owning a couple fantastic E.S. eyepieces. I have the 6.7mm & 30mm 82° eyepieces and th...

    View full details
    $499.99 USD
    $499.99 USD - $499.99 USD
    $499.99 USD
    $199.99 USD
    $199.99 USD - $199.99 USD
    $199.99 USD
    Save 60% Save %
  • $269.99 USD - $269.99 USD
    $269.99 USD
    $269.99 USD - $269.99 USD
    $269.99 USD

    Explore Scientific 82° 4.5mm LER Waterproof Eyepiece - 1.25"

    ES-EPWP8245LE-01

    With its particularly long eye relief of 15.9mm, the 4.5mm LER ocular from Explore Scientific’s 82° Series of Argon-Purged Waterproof Eyepieces put...

    View full details
    $269.99 USD - $269.99 USD
    $269.99 USD
    $269.99 USD - $269.99 USD
    $269.99 USD
  • Sold out
    $269.99 USD - $269.99 USD
    $269.99 USD
    $269.99 USD - $269.99 USD
    $269.99 USD

    Explore Scientific 82° 6.5mm LER Waterproof Eyepiece - 1.25"

    ES-EPWP8265LE-01

    With its impressively long eye relief of 16.8mm, the 6.5mm LER ocular from Explore Scientific’s 82° Series of Argon-Purged Waterproof Eyepieces put...

    View full details
    $269.99 USD - $269.99 USD
    $269.99 USD
    $269.99 USD - $269.99 USD
    $269.99 USD
    Sold out
  • Save 33% Save %
    $269.99 USD
    $269.99 USD - $269.99 USD
    $269.99 USD
    $179.99 USD
    $179.99 USD - $179.99 USD
    $179.99 USD

    Explore Scientific 82° 8.5mm LER Waterproof Eyepiece - 1.25"

    ES-EPWP8285LE-01
    6 in stock

    With its long eye relief of 15mm, the 8.5mm LER ocular from Explore Scientific’s 82° Series of Argon-Purged Waterproof Eyepieces puts the focus on ...

    View full details
    $269.99 USD
    $269.99 USD - $269.99 USD
    $269.99 USD
    $179.99 USD
    $179.99 USD - $179.99 USD
    $179.99 USD
    Save 33% Save %
  • $799.99 USD - $799.99 USD
    $799.99 USD
    $799.99 USD - $799.99 USD
    $799.99 USD

    Explore Scientific 92° 12mm Long Eye Relief Waterproof Eyepiece - 2"

    ES-EPWP9212-01
    Only 2 left!

    Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 92° Series eyepieces are hyper-wide class oculars that can transform...

    View full details
    $799.99 USD - $799.99 USD
    $799.99 USD
    $799.99 USD - $799.99 USD
    $799.99 USD
  • $799.99 USD - $799.99 USD
    $799.99 USD
    $799.99 USD - $799.99 USD
    $799.99 USD

    Explore Scientific 92° 17mm Long Eye Relief Waterproof Eyepiece - 2"

    ES-EPWP9217-01
    Only 1 left!

    Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 92° Series eyepieces are hyper-wide class oculars that can transform...

    View full details
    $799.99 USD - $799.99 USD
    $799.99 USD
    $799.99 USD - $799.99 USD
    $799.99 USD
  • $199.99 USD - $199.99 USD
    $199.99 USD
    $199.99 USD - $199.99 USD
    $199.99 USD

    Explore Scientific 99% Reflective Diagonal -2"

    ES-DD02-00CF

    The Explore Scientific 2-inch Dielectric-Coated Diagonal Mirror comes complete with 1.25-inch Adapter and dust covers. Solid construction and light...

    View full details
    $199.99 USD - $199.99 USD
    $199.99 USD
    $199.99 USD - $199.99 USD
    $199.99 USD
  • $589.99 USD - $589.99 USD
    $589.99 USD
    $589.99 USD - $589.99 USD
    $589.99 USD

    Explore Scientific 99% Reflective Diagonal -3"

    ES-DD03-01CF

    The Explore Scientific 3-inch Dielectric-Coated Diagonal Mirror comes complete with 2 inch Adapter and dust covers. Solid construction and light we...

    View full details
    $589.99 USD - $589.99 USD
    $589.99 USD
    $589.99 USD - $589.99 USD
    $589.99 USD
  • $379.99 USD - $379.99 USD
    $379.99 USD
    $379.99 USD - $379.99 USD
    $379.99 USD

    Explore Scientific HR Variable Coma Corrector (2")

    ES-HRCC02-00

    After hours at the eyepiece, you finally get to view the fruits of your astrophotography labors. The stars in the center of the field pop like bril...

    View full details
    $379.99 USD - $379.99 USD
    $379.99 USD
    $379.99 USD - $379.99 USD
    $379.99 USD
  • $109.99 USD - $119.99 USD
    $109.99 USD - $119.99 USD
    $109.99 USD - $119.99 USD
    $109.99 USD

    Explore Scientific Nebula Filter CLS - 1.25"

    Options available

    Explore Scientific Nebula Filter CLS - 1.25"

    $109.99 USD - $119.99 USD
    $109.99 USD - $119.99 USD
    $109.99 USD - $119.99 USD
    $109.99 USD
  • $119.99 USD - $119.99 USD
    $119.99 USD
    $119.99 USD - $119.99 USD
    $119.99 USD

    Explore Scientific Nebula Filter CLS - 2.0"

    ES-310220

    Explore Scientific Nebula Filter CLS - 2.0"

    $119.99 USD - $119.99 USD
    $119.99 USD
    $119.99 USD - $119.99 USD
    $119.99 USD
  • $129.99 USD - $129.99 USD
    $129.99 USD
    $129.99 USD - $129.99 USD
    $129.99 USD

    Explore Scientific Nebula Filter H-Beta - 1.25"

    ES-310235

    Explore Scientific Nebula Filter H-Beta - 1.25"

    $129.99 USD - $129.99 USD
    $129.99 USD
    $129.99 USD - $129.99 USD
    $129.99 USD
  • $179.99 USD - $179.99 USD
    $179.99 USD
    $179.99 USD - $179.99 USD
    $179.99 USD

    Explore Scientific Nebula Filter H-Beta - 2.0"

    ES-310230

    Explore Scientific Nebula Filter H-Beta - 2.0"

    $179.99 USD - $179.99 USD
    $179.99 USD
    $179.99 USD - $179.99 USD
    $179.99 USD
  • $109.99 USD - $109.99 USD
    $109.99 USD
    $109.99 USD - $109.99 USD
    $109.99 USD

    Explore Scientific Nebula Filter Oxygen III - 1.25"

    ES-310205

    Explore Scientific Nebula Filter Oxygen III - 1.25"

    $109.99 USD - $109.99 USD
    $109.99 USD
    $109.99 USD - $109.99 USD
    $109.99 USD
  • $139.99 USD - $139.99 USD
    $139.99 USD
    $139.99 USD - $139.99 USD
    $139.99 USD

    Explore Scientific Nebula Filter Oxygen III - 2.0"

    ES-310200

    Explore Scientific Nebula Filter Oxygen III - 2.0"

    $139.99 USD - $139.99 USD
    $139.99 USD
    $139.99 USD - $139.99 USD
    $139.99 USD
  • $109.99 USD - $109.99 USD
    $109.99 USD
    $109.99 USD - $109.99 USD
    $109.99 USD

    Explore Scientific Nebula Filter UHC - 1.25"

    ES-310215

    Explore Scientific Nebula Filter UHC - 1.25"

    $109.99 USD - $109.99 USD
    $109.99 USD
    $109.99 USD - $109.99 USD
    $109.99 USD
  • $139.99 USD - $139.99 USD
    $139.99 USD
    $139.99 USD - $139.99 USD
    $139.99 USD

    Explore Scientific Nebula Filter UHC - 2.0"

    ES-310210

    Explore Scientific Nebula Filter UHC - 2.0"

    $139.99 USD - $139.99 USD
    $139.99 USD
    $139.99 USD - $139.99 USD
    $139.99 USD