Underwater Photography an underwater camera has a lens of focal length 35.0mm and a maximum aperture of f/2.80. The film it uses has an emulsion that is sensitive to light of frequency 6.00 x 1014 Hz. If the photographer takes a picture of an object 2.75 m in front of the camera with the lens wide open, what is the width of the smallest resolvable detail on the subject if the object is?
(a) A fish underwater with the camera in the water and
(b) A person on the beach, with the camera out of the water?