Canon EOS M200 Advanced User's Manual page 188

Manual Focus
When using non EF-M lenses, set the lens's focus mode switch to <MF> in
z
step 1.
Even with manual focusing, you can use the Touch Shutter to take a picture.
z
188
4
Focus manually.
While looking at the magnified image,
z
turn the lens focusing ring to focus.
After achieving focus, tap [ u ] to return
z
to the normal view.
5
Take the picture.