I think it's a judgment call we all make. I got into a big debate on another site about this... someone was very determined to say that digital cameras don't even take photos ... they take 'images' (because of a prior definition of what photography was). I was very restrained at that point (remember to be nice!) but couldn't help but think of an even prior definition of photography (the linguistic roots of this word in Greek). 'photos' = 'light' 'graphe' = writing... Therefore... 'writing or making pictures with light!' (Automatically thru a camera). In a computer you often RENDER pixel changes and artificially produce something with different 'light' (what we perceive with our eyes). Mechanical / physiologically and / or emotionally. Light is in waves & colour spectrum variations occur as different vibrations become light. Our eyes are created 'light-sensitive' & the absence of light is darkness. Light is a created thing (according to Genesis chapter 1 verse 3)and our response to it can be emotive or mechanical. Either way - it is LIGHT! There I go again... given a ghost of a chance!