What is defined as how clear or sharp a particular image is? focus angle shot obscurity

I believe the correct answer is: focus.

The camera represents a light-tight box that is used to expose a photosensitive surface to light and in order to focus the light onto the surface, most cameras use a lens to direct the light. Focus is an optical device that consists of a curved material that allows light to pass through it and defines how clear or sharp a particular image would be.

answer; i believe that the correct answers are ///train hospital staff on how to use new machinery and design an artificial lung that could be implanted in humans;

c. gabriele was a catholic priest while also being a composer.