Hi ....
Why would a photographer shoot in Aperture mode when automatic setting does the job nicely, i know in some situations you need shallow depth of field, but in general auto mode is doing the job, i hear photographers use A mode 95% of the time, i need some explanation in detail if possible.
Thanks ,,
To put it simply, creative control.
Controlling aperture allows me to create a pleasing background that doesn't compete with the subject but instead, emphasizes it. Or, conversely, it allows me to use a deep depth of field which brings the background into focus to give the subject some context. Even then, though, I might want a deepER depth of field, but not TOO deep; allowing me to bring only the elements I want into focus. Again, creative control.
Personally, I think Full-auto is fine for snapshots or when you're shooting in ideal conditions. However, when (if) you get to a point where you want to start taking your shots to the next level, you need to start taking more control over how they're taken. At this point you're also probably going to start finding yourself shooting in conditions that are far from ideal and that Full-auto will be less and less capable of "nailing the shot". The first step in doing that is learning the Exposure Triangle, composed of Aperture, Shutter Speed, and ISO. Each leg of that triangle has two components, or two considerations (as I like to call them): Aperture has shallow depth of field vs deep depth of field. Shutter speed has motion blur and motion freezing. ISO has sharpness and digital noise. Each leg of the triangle, and each of it's considerations, are things that can be brought in to the creative process of getting exactly the shots we want.
