Answer:
A. f/2.8
Explanation:
A hole within a lens, through which light travels into the camera body is referred to as the APERTURE.
It is typically expressed as "f number" in photography. Basically, a fast lens is any lens with a maximum aperture of f/4 or more i.e f/2.8 , f/1.8 , f/1.4 etc.
The smaller the number is the bigger the maximum aperture is. Hence, the bigger the maximum aperture the more light that your lens will allow in.
Therefore, the ideal aperture settings for a fast lens is f/2.8
I would say that you should use 32 pt font
The retina is the part pf the eye that is similar to the film of a camera. It is a thin layer of cells that is located at the back of the eyeball. This part contains photoreceptor cells which respond to light where the neural signals received undergoes complex processing by other neurons in the retina.
Luke himself wrote t the book