My doubt may appear silly, and if found, so kindly excuse me. I have doubt whether the diopter in the camera needs to be adjusted at all on modern DSLR's.
During the pre digital days, you had to see through the view finder, adjust the lens manually until the image is perfectly sharp and then take the picture. There were no lights or beeps to let you know the camera had been focused - everything was manual. If the diopter was not aligned to the optical perfection of the photographer, the camera would also be seeing what the person did, and one would end up with an image that was out of focus.
Now we have intelligent cameras that when the focus is right, the circular light blinks in the view finder, and during auto focus a beep confirms the fact. It is irrelevant how you see through the view finder.
So while taking pictures using a modern DSLR, does the perfect adjustment of diopter in any way affect the sharpness of the picture?
I welcome expert views.