I ran the image through photoshop to raise the shadows and toyed with the channels.
The picture seems to indicate a fake. The shadow edges of the "7" do not match that of the other letters. The highlight surfaces of the "7" do not match the other letterings either.
Also, there are hints of erasure of the old "5" from the image and the "7" thereafter pasted over.
And its not an original Canon advert image for sure. Those would have been assembled in vector programs like illustrator and not in photoshop. I see evidences of the "Canon" wording being a cut-and-paste job after toying with the image.