Having the ultimate correct settings defines photography.
Let's talk about camera settings first. It is highly recommended that you use the manual shooting mode as much as possible. Because that gives you the maximum creative freedom. You can control both the DoF and the exposure, depending on the scene, as well as the effect that you are after. It gives you the option to drag the shutter for capturing motion blur or freeze the moment using a fast shutter speed.
If you prefer a faster hassle-free shooting experience or if you have just migrated from the Auto mode to the semi-manual (priority) mode) then stick to Aperture priority. It would work 90% of the shooting situations.
We would also prefer you use the Auto ISO feature because that is a great way to balance an exposure when you are limited by the aperture value and the shutter speed you dialed in.
We also recommend using back button focusing because that allows you to separate the shutter release and the focusing mechanism. Back button focusing also speeds up the entire image making process especially when shooting sports, fast action, birds or anything that's moving around quickly.
Also recommended is that you select the right metering mode. This will allow you to better meter a scene. We recommend Spot metering when you are unsure or when the scene has a wide dynamic range.
Select the right focusing mode. We recommend using single-point auto-focusing with continuous auto-focusing and tracking switched on. This allow the camera to use all of the AF points while allowing the subject to be tracked as it moves across the scene.
Let's come to lens settings. Here are a few important pointers. Select AF as it works most times than not. Unless of course you are shooting macro photography or product photography. Select the right image stabilization mode. General image stabilization for hand-held shooting. Panning assist mode when shooting birds (in flight), athletes, cyclists or moving automobiles. Select the sports mode when the subject is moving erratically.