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  1. Explore Scientific 2" HR Variable Coma Corrector

    $379.99

    Explore Scientific’s HR Variable Coma Corrector is a high-performance optical corrector designed by world famous optical designer Harrie Rutten, and it will help you minimize or even eliminate image aberrations.

  2. Tele Vue Paracorr Type 2 photo/visual

    $510.01
    The TeleVue Paracorr Type 2 photo/visual coma corrector drastically reduces the coma and curvature of field of all Newtonian reflectors and large aperture "no ladder" Dobsonians with focal ratios as fast as f/3 . . .
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