focal length

People in the comments section were complaining about the length of one of these essays that ran in The New Yorker.

It ended on a complaint that she was 'tired rather and spending my time at full length on a deck-chair in the garden.'

These sections also have vibrations of their own which are of shorter length and more rapid motion.

Besides this fundamental or primary vibration, the movement divides itself into segments, or sections, of the entire length.

At length only four or five flames remained, feebly wavering in their pools of melted wax.

The experience of the Jesuit fathers at Port Royal is related at length, from their own point of view.