This is what the setup looked like, with the EF to EF-M adapter between the lens and the camera.
Here are some samples. The only post processing is a slight reduction in highlights. The EOS-M handled the white balance in this auditorium better than did the 5D Mark II that I used for the play.
|35mm, f/2.8, 1/500 sec., 1600 ISO|
|70mm, f/2.8, 1/750 sec., 1600 ISO|
|70mm, f/2.8, 1/500 sec., 1600 ISO|
|50mm, f/2.8, 1/60 sec., 1600 ISO|