Pay in 4 interest-free payments of $24.75 Learn more
Ships within 48 hours · Estimated delivery Aug 2 - Aug 7
the image it delivered is well controlled chromatic aberration
This is a high-quality CNC manufacture extension tube from GSO
you still must pay attention to the unavoidable tolerance between the installation of the collimator and internal diameter of a focuser
The coma corrector is 3 elements fully coated optics to elimninate the coma caused by Newtonian
such as 20DCV in our demo
Newtonian F/4 ~ F/6 Coma Corrector the image it delivered isThe coma corrector is 3 elements fully coated optics to elimninate the coma caused by Newtonian. The corrector comes with a T thread adapter to be attached with DSLR directly. The demo pictues show the difference when the coma corrector is used for Moon photography. The item is free shipping in US mainland only.
US$ 37.99
US$ 39.99
US$ 31.99
US$ 16.99
US$ 20.99
US$ 49.99
US$ 14.99
US$ 12.99