Newtonian F/4 ~ F/6 Coma Corrector
The coma corrector is 3 elements fully coated optics to elimninate the coma caused by Newtonian. The corrector comes with a T thread adapter to be attached with DSLR directly. The demo pictues show the difference when the coma corrector is used for Moon photography.
The item is free shipping in US mainland only.
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