Why do 2x hemispheres and a sphere is formed in air when a flash light(white colour commonly used in mobiles) is being captured through a mobile phone.? why do a white spot form in 1st hemisphere.? why do that white spot falls exactly on the boundaries of 2nd hemisphere.? Why do a small interlink comes between 1st and 2nd hemisphere.? Why do they differ in colour intensity and length of hemispheres is changed when the device of capturing is changed.?