I purchased an Optolong Clip-in L-Enhance Light Pollution Filter for my Canon T5. Optically it seems to work well. But, I noticed it doesn't securely fasten into position. If you tip the camera body from vertical with the telephoto lens removed. It falls out. Does the telephoto lens have to be installed to hold the clip-in LPF in place?

A and D: What is the advantage of a mirrorless DSLR? How big of a disadvantage is it using a DSLR that has a mirror? Are there ways to overcoming any of these disadvantages? Michael

You mentioned the best camera is the camera you have. My current DSLR camera is a Canon T5 (no i), Canon 70-200mm zoom lens and a Canon EFS 15 to 85mm wide angle lens. 1. Is this equipment of use for astrophotography? 2. What does the suffix "i" indicate on the camera body? If I had a T5i. 3. How would you suggest employing this equipment? Michael

Is this a good camera for astrophotography? Does it come with the IR filter removed? It is a full frame camera.