No, not the photo
No, not the camera or the lens
(even though I did shoot this with a Canon 5D from 2005 with an adapted, manual focus Zuiko (Olympus) 50mm lens from the 1980s)
No, it was focusing manually trough an optical viewfinder. The 5D doesn't have any manual focusing aids but it does have a bright, optical viewfinder with adjustable dioptre so it wasn't too difficult to get proper focus.
Excellent focus here Helge. I do sometimes miss those bright optical viewfinders. I used to have a 5D M2 but I traded it in on my current Sony camera. Sometimes I wish I still had it.
(I used to own a 50mm Zuiko lens in the 80s!)