Correct my terminology.
On the back of a C14 sct there is a part that screws on to reduce the 4 inch threaded back to a 2 inch threaded back.
Is that part that reduces the 4 inch threaded back to a 2 inch threaded back called a visual back or a reducer plate???
What ever that is called I need one.
I have a crayford focuser and need to screw it on to a two inch threaded end.
But all I have attached to the back of the ota is not threaded.
It is just 2 inch slip in type for eyepieces barlows and celestron diagonals.
I need the same reducer or vb but threaded.
Is that a visual back or reducer plate??
Where can I find one????????
Thanks for your time