"Sharp copy" is the phrase sometimes used by photographers to say that the image quality (sharpness in particular) of this particular version of the lens is good. When something is mass-produced, designs are made which define the ideal size, along with the upper and lower limits for tolerance away from this ideal size, for every piece (every screw, hole, seal, etc.) in the final product. When it comes to making a lens, these variances apply to the glass as well as the metal housing. Sometimes a lens which might pass quality inspection at the factory might perform worse than another lens that came off the same production line at a different time.
"This is a pristine, sharp copy of the Canon EF 70-200mm F/2.8 L IS USM Lens; it is flawless."
A person who one or more people feel is the coolest peson among the group. This person will be the guy in the group who allways does stunts like climbing things or dumping in school auditoriums.
Usually an american, sometimes sic his dad on you. He will sit near you and constantly peek over your shoulder to judgewhatever you are doing, whether he approves or not.