Answer:
A simplified version of answer would be cameras are often slower than we can count on, and the images may be blurred, but modern cameras automatically sharpen their image to perfect the scene reflected. Paintings are totally dependant on the artist, and what the artists perceives.
I know this doesn't really help for the first part, but mediums mostly go for paintings, like what type of paint or is it ink or charcoal. I'd you look through the history of photography, the first technical photograph was engravment on glass.