I picked up a used 144mm f/8 Newtonian. I fixed it up a bit but it’s still in need of a good collimation. Visually it seemed sharp at low powers, but it shows significant issues at higher magnification or with a camera.
I picked up a used 144mm f/8 Newtonian. I fixed it up a bit but it’s still in need of a good collimation. Visually it seemed sharp at low powers, but it shows significant issues at higher magnification or with a camera.