If you alter the photo how does it effect the look, sorry if this sounds daft,

[iMore Question]

but when I download my camera to Olympus viewer two it's simple and nothing changes the appearance.

 

[Just_Me_D]

It depends on the manner in which you altered the photo. For example, if you alter it with a black and white filter, the photo will look as if it was taken using black and white film.