Have recently bought a 2inch Astronomik CLS filter and I can’t get it to fit inside the optical train of my OAG. Have tried every possible combination but I’m missing something. I’m using a 294mc pro. Any help appreciated. In the attached photo the filter is attached to the 16.5mm piece.
I’m thinking I should of bought the 1 1/4 inch filter instead to save money and make it fit 😞
