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Diagonals & Prisms

Mirror diagonals and erect-image prisms in 1.25-inch and 2-inch sizes. Make telescope viewing more comfortable and get correctly oriented images for both astronomy and terrestrial use.

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  • Celestron 1.25" Erect Image 45° Diagonal (94112-A)

    Celestron 1.25" Erect Image 45° Diagonal (94112-A)
    $49.99
  • Celestron 1.25" Dielecric Star Diagonal, with Twist Lock (93571)

    Celestron 1.25" Dielecric Star Diagonal, with Twist Lock (93571)
    $159.99
  • Explore Scientific 2" Diagonal with 1.25 Adapter (DD02-00CF)

    Explore Scientific 2" Diagonal with 1.25 Adapter (DD02-00CF)
    $199.99
  • Celestron 2" Dielectric Mirror Diagonal, TwistLock (93573)

    Celestron 2" Dielectric Mirror Diagonal, TwistLock (93573)
    $249.95
  • Celestron 2" Mirror Diagonal with XLT (93527)

    Celestron 2" Mirror Diagonal with XLT (93527)
    $199.95
  • Celestron SCT to 2" Adapter, Visual Back (93661)

    Celestron SCT to 2" Adapter, Visual Back (93661)
    $27.95