focus

The heat of sunlight at the focus of a magnifying glass can easily set dry leaves on fire.

Not long ago, it was difficult to produce photographs of tiny creatures with every part in focus.[…]A photo processing technique called focus stacking has changed that. Developed as a tool to electronically combine the sharpest bits of multiple digital images, focus stacking is a boon to biologists seeking full focus on a micron scale.

During this scene, the boy’s face shifts subtly from soft focus into sharp focus.

I believe I can bring the high degree of focus required for this important job.

The earthquake's focus was at exactly 37 degrees north, 18 degrees south, seventy five meters below the ground.

Text entered at the keyboard or pasted from a clipboard is sent to the component which currently has the focus.

Candles, in fact, are an essential ingredient in many spells. They can be used as either the focus of the spell or as a component that sets the spell's overall mood and tone.