I am wondering how much the pros edit their photos. For example, if you look at the pictures from Getty Images or National Geographic do they all use some type of filtering and/or post editing? If so, how extensivly are those pictures edited? I guess the question is: did the original image (in real life) look like that or does it look great because they added the right filters and used something like Photoshop to make it look great? If the answer is that the trick is in the editing can someone recommend the best way to learn how (I'm not looking to go pro, I just want to learn to produce great pictures).