Does the canon sd790 hav a lens coating?

Question

if so, how many layers?

wat is the use of the coating/s?

is the coating/s supposed to protect the lens from scratches or etc.?

Answer 1

The lens coating cuts down on lens flare, reflections from the multiple surfaces of the lenses that make up the entire camera lens. The coating is susceptible to scratches, so treat you lens with care.