Love at far sight, though similar to 'love at first sight' differs in that the initial attraction dies once its object comes into proper view.
From across the room I saw him standing by the bar. He looked at me, and I looked at him, and it happened. You could feel it.
It was only when he holled me over to buy me a drink that I realised that it was less crush and more crash. I guess you'd call it love at far sight.