There are several technical factors that will affect your images
directly which you have control over. Depending on each
situation that you want to shoot, you may want to have the
others adjusted automatically by your camera, or adjust all of
them manually yourself. Shooting moving subjects generally means
shooting in Shutter priority mode and shooting portraits usually
means shooting in aperture priority mode or manual mode. Doing
serious flash photography, you will almost always use manual
mode to be able to expose freely. This is a property of your
lens. Focal lengths are normally given as 35mm equivalent focal
lengths, that is to say, the length given on the lens indicates
the focal length when used with 35mm film, or a full frame
sensor. Focal length along with aperture, affects depth of
field, longer focal lengths generally having a larger effect on
the amount of blurring than just a wide aperture. This
determines just how wide your lens will be opened once the
shutter is triggered. It directly restrict