Focus

ピント

pinto

(quality of the convergence of light on the photographic medium)

焦点

shōten

(in optics)

焦点

shōten

(in mathematics)

集中

shūchū

(concentration of attention)

ピントを合わせる

pinto wo awaseru

((transitive, optics) to adjust (a lens, an optical instrument))

絞る

shiboru

(to cause (rays of light, etc) to converge at a single point)

集中する

shūchū suru

((intransitive) to concentrate one's attention)

集中する

shūchū suru

((intransitive) to concentrate one's attention on something)