Folks, I have just noticed I have a spiders web inside the tube of my Sky-Watcher 190mm Maksutov-Newtonian, its basically toward the primary mirror and it shows up when I take an image..
Does anyone have any ideas how to remove the mirror cell?? There are different sets of screws around the tube but a bit unsure which ones to remove.
First of all I need to make the necessary marks around the tube to make sure the cell goes back in the correct position...
Any ideas??
Many thanks in advance.
Paul