I suppose "eagle eye" will be a winner, but it wasn't cheap either.
The Daily Pic: Frederick Catherwood's eagle eye did without Daguerre's invention.
Wall Street Journal: “Begley has a great many strengths—concision, eloquence, an eagle eye—and few of the usual shortcomings.”
She had an eagle eye, an aquiline nose, an eagle flounce, and an eagle heart.
Catharine, with an eagle eye, watched these indications of a lofty mind.
His eagle eye glared through the thicket for the tall form of Sir Dacre, on whom he sought to wreak his vengeance.
He penetrates to the root of the art at one step of his eagle eye.
Sewall watched the men unostentatiously, but with an eagle eye.
She gathers courage from the past, and looks with eagle eye to the future.
Half rising from his chair, he fixed her with his eagle eye.