The focusability of the new input field made keyboard navigation much smoother.

The camera's viewfinder is focusable, allowing photographers to bring their subject into focus before shooting.

The Crayford focuser allowed me to achieve pinpoint sharpness on faint nebulae without the stick-slip of rack-and-pinion designs.

Crayford focusers are popular among amateur astronomers because they provide smooth, backlash-free focusing.

Photographers often bring focusing cloths to dimly lit shoots to ensure precise manual focus.

For the vintage plate camera, he pulled the focusing cloth over his head and the back of the camera to see the image on the ground glass.

The photographer changed the focusing screens to suit each camera body.

Before every portrait session, she carefully cleans the focusing screen to ensure sharp, accurate framing through the viewfinder.

The research team adopted a tri-focused approach to tackle the project's technical, ethical, and economic challenges.

During the experiment, we used isoelectric focusing to separate the protein isoforms according to their isoelectric points.