|
I have got the Orion 0.8x reducer and have some trouble with it. It just goes into the draw tube and is held with the screws. What I noticed is a distortion towards the frame edges: as if the stars rotate around the center of the frame. They are elongated little arcs. It does not show so much on subs but once stacked the effect is quite obvious. I have tried different spacing ie not fully inserted into the draw tube but that did not solve the issue or my method was not fine enough. I wonder whether it needs to go in deeper? But that cannot be done since it’s hard up against the flange.
|