Excellent adapter for starting threaded imaging train and eliminating sag!
Before I had this adapter, there was sag in my imaging train caused by a different T2 adapter that was thumb ******* into my field flattener. By gorilla tightening this SCA adapter into my flattener, I was able to solve the problem with sag. Now stars are round to the edges of my images! I'm very happy with this adapter and would recommend it to others who need a way to start a T2 threaded connection starting from a 2" accessory.